acute/keen/sharp.导航词义：敏锐的

1. acute:adj. 敏锐的，灵敏的.用于描述人们的想法、感觉，通常指能够注意到被观察物体的细微差异的。

He gave an acute analysis of regional politics.

他对区域政治作了敏锐的分析。

Wild animals have an acute sense of smell.

野生动物有灵敏的嗅觉。

2. keen:adj. 敏锐的，灵敏的.用于描述思想感情和感官，强调敏锐的、聪慧的。

She has a keen eye/mind.

她目光/思想敏锐。

His keen ear caught the trace of an accent.

他敏锐的耳朵听出了些许口音。

3. sharp:adj. 敏锐的，灵敏的.既可指头脑灵活的，又可指观察入微的。

Birds have sharp eyes and dogs have sharp noses.

鸟有敏锐的眼睛，而狗有灵敏的鼻子。

He is seventy years old, but his mind is still sharp.

他虽然70岁了，但头脑还很灵活。

全部

1·His mind is as sharp as ever.

他思维敏锐，一如既往。《牛津词典》

2·His nose was thin and sharp.

他的鼻子又细又尖。《柯林斯英汉双解大词典》

3·Many of them will have sharp blades.

他们很多都会有锋利的刃。《柯林斯英汉双解大词典》

4·Connie had a sharp eye for the absurd.

康妮对荒谬之事有敏锐的眼光。《柯林斯英汉双解大词典》

5·He has a sharp tongue.

他说话尖酸刻薄。《牛津词典》

6·These hooks are sharp with long shanks.

这些长身鱼钩很锋利。《柯林斯英汉双解大词典》

7·His sharp retort clearly made an impact.

他的尖锐反驳显然起了作用。《柯林斯英汉双解大词典》

8·A sharp-eyed shop clerk spotted the fake.

一名眼尖的售货员发现了假货。《柯林斯英汉双解大词典》

9·A sharp overhang of rock gave them cover.

岩石上方一处尖尖的突起给他们提供了掩护。《柯林斯英汉双解大词典》

10·Julia was a very tough, sharp-tongued woman.

朱莉娅是一个非常坚韧，说话尖锐的女子。《柯林斯英汉双解大词典》

锋利

1·These hooks are sharp with long shanks.

这些长身鱼钩很锋利。《柯林斯英汉双解大词典》

2·Looks as if it was made by a sharp edge of something in metal.

看起来好像是什么金属东西的锋利边缘割的。

3·A heavy stone may have been used to hit the sharp stone into the surface.

一块很重的石头可能是用来把锋利的石头打到表面上的。

4·Second, heels are quite functional for defense against oncoming enemies, who can easily be scared away by threatening them with a pair of these sharp, deadly fashion accessories.

其次，高跟鞋在防御迎面而来的敌人时非常有用，这些敌人很容易被这些锋利的、致命的时尚配饰吓走。

5·An earnest expression, balding but with some beautiful white hair, thin lips, a sharp chin ... I remember thinking you were not handsome enough for me.

认真的表情，秃顶但有一些美丽的白发，薄薄的嘴唇，下巴很锋利……我记得我以为你不够帅。

急剧

1·The retail trade is witnessing a sharp fall in sales.

零售业的销售额在急剧下降。《牛津词典》

2·The sharp increase in crime seems to buttress the argument for more police officers on the street.

犯罪率急剧上升似乎肯定了街上增加巡警的论点。《牛津词典》

3·Escalating worldwide demand for corn has led to a sharp increase in the market price of corn, and corn prices are likely to remain high.

全球对玉米需求的不断增长导致了玉米市场价格的急剧上涨，而玉米价格很可能继续保持在高位。

4·The World Health Organization says there has been a sharp increase in the number of children in developing countries who weigh too much.

世界卫生组织表示，目前发展中国家体重超标的儿童数量急剧增加。

5·Some species of Arctic birds are threatened by recent sharp increases in the population of snow geese, which breed in the Arctic and are displacing birds of less vigorous species.

某些种类的北极鸟受到近来雪雁数量急剧增加的威胁，这些雪雁在北极繁殖，并且正在取代生命力较弱的鸟类。

敏锐

1·His mind is as sharp as ever.

他思维敏锐，一如既往。《牛津词典》

2·He was always the robust one, physically strong and mentally sharp.

他一向是个健壮的人，身体强壮、头脑敏锐。《柯林斯英汉双解大词典》

3·In a million words written over 20 years, he captured the full range of human emotions and conflicts with a precision that remains sharp today.

在20多年的写作生涯中，他用100万字的篇幅捕捉到了人类情感和冲突的方方面面，其文字的精确度在今天依然敏锐。

4·Birds have sharp eyes and dogs have sharp noses.

鸟有敏感的视力，而狗有敏锐的嗅觉。

5·You are really quite the sharp parodist.

你真的是个敏锐的打油诗作者。

锐利

1·Her eyes had a sharp, curious look.

她的眼睛里有一种锐利而好奇的神情。

2·This blade starts out as sharp as the sharpest razor blade that humans have developed.

这种锯片在起初就像人类生产的最锋利的剃须刀片那样锐利。

3·It takes a sharp eye to notice things aren't exactly as it should be.

这需要一双锐利的眼睛来发现商店里的事物并不是它们应该是的样子。

4·Along with the cluster's dense core, the outer reaches of M13 are highlighted in this sharp color image.

除了星团稠密的核心，这张锐利的彩色照片还突出了M 13的外延范围。

5·Some of the invisible are brought to our attention by a group of sharp, blogging librarians who are not the stereotypical shushing, cardigan-wearing guardians of the reference room.

一些人们看不到的馆藏被锐利的图书馆员发掘出来，他们写博客，不是那种通常的坐在参考咨询室里面穿羊毛衫的图书馆员的样子。

尖

1·His nose was thin and sharp.

他的鼻子又细又尖。《柯林斯英汉双解大词典》

2·The Duchess asked, with another dig of her sharp little chin.

公爵夫人一边问一边用她的小尖下巴又戳了一下。

3·Those girls at the telephone office have very sharp tongues and they like to make fun of others.

电话所的女电话员们个个尖嘴嚼舌，老和他人开玩笑。《新英汉大辞典》

4·The goloshes were new, just bought for the winter, and the pimples on their soles were fresh and sharp.

这双新胶套鞋是新买来冬天穿的，鞋底小痘痘又新又尖。

5·The consequences of interacting with the array of sharp spines on a sea urchin or porcupine are pretty obvious to any creature passing by.

与海胆或豪猪身上的尖刺相互作用的结果对任何经过的生物来说都是相当明显的。

犀利

1·And all of this means that you, little S95, can take amazing, sharp pictures in low light without the flash.

所有这些意味着小小的佳能95你在不开闪光灯的情况下可以捕捉低亮度的惊人、犀利的图片。

2·For example, in a photograph of an insect choose the most beautiful elements, and always keep the eyes sharp.

例如，在拍摄昆虫的照片时，要选择最美丽的元素，并始终保持其目光犀利。

3·Despite the sharp language used, the article is not necessarily pessimistic about the about the enduring future of marriage.

文章尽管使用了犀利的语言但是并不对结婚那遥远的未来杞人忧天。

4·Sure, but I had an edge and it was razor sharp.

当然，但我有自己的优势，而这种优势就像剃刀边缘一样犀利。

5·A friend of Cheng Guosheng said the brother Sharp photos he received on his mobile phone news resembled his brother who went missing years ago.

程国生的一个朋友在手机上接收到犀利哥的照片，认出他是几年前失踪的程国荣。

强烈的

1·His words drew sharp reactions from people on both sides of the issue.

他的言辞激起了问题双方的强烈反应。《柯林斯英汉双解大词典》

2·The sharp laser beam further zeros in on a small portion of the brain.

一旦感染，强烈的激光就会通过通道进一步瞄准脑的那一小部分。

3·The contrast with other parts of Europe is sharp.

欧洲其他地区和此形成强烈的对比。

4·With each breath of the sharp, reviving air one seems to inhale new life.

在每一次强烈，复苏的呼吸下，整个人也好像注入了新生。

5·Acids are chemicalcompounds that, in water solution, have a sharp taste, a corrosiveaction on metals, and the ability to turn certain blue vegetable dyesred.

酸是一种化合物，它在溶于水时具有强烈的气味和对金属的腐蚀性，并且能够使某些蓝色植物染料变红。

锐

1·JPG is also not an ideal medium for typography, crisp lines, or even photographs with sharp edges, as they are often blurred or smeared out by anti-aliasing.

对于排版印刷，线条清晰，或甚至有锐边的照片来说，JPG也不是一种理想的媒介，因为他们经常被反锯齿而弄得模糊不清。

2·If you have a Super TFT screen like the newer HTC phones, your phone has good (not great) black levels, sharp lines, and fairly good colors.

如果你使用的手机显示器材质是超级tft屏，比如说新款的HTC手机，这种材质的暗电平还可以(但不是非常棒)，线条锐度比较高，非常好的色彩。

3·It has rounded shoulders inside instead of the sharp orifice - like edge.

在内部作成圆形凸肩以代替锐缘孔板状的侧面。

4·Only one chance, home sharp instincts, but in order to escape a pregnant women and stop.

唯一的一次机会，家锐本能逃掉，却为了一个孕妇而停下。

5·The use of books and cultural design elements, on the following sharp silver to protect the middle and deep wisdom.

使用图书文化设计元素，上下面锐银色保护着中间充满智慧的深邃黑。

尖利

1·His horns look very sharp.

他的角看起来非常尖利。

2·When anything smaller than their own bodies happens by, they spring from the mud and swallow their prey whole, locking it in their jaws with their sharp teeth.

只要任何比它们个头小的生物经过，它们就会从泥地里跳出来将猎物整个吞下，用尖利的牙齿将它们紧紧困在嘴里。

3·At last she began to run over the sharp stones and through the thorns, and though the wild beasts sprang out before her, they did her no harm.

最后她开始从尖利石头上跑过，穿过灌木丛，尽管野兽在她面前跳跃，但是它们并没有伤害她。

4·Maintenance should first check the tire pressure, wear, nut loose or fall off, remove the twins or tread on the inserts and nails and other sharp objects.

养护时首先应查看轮胎气压、磨损状况，螺母有无松动或掉落，除去双胎间或胎面上的嵌入物及铁钉等尖利杂物。

5·Keep them as clean and as sharp as your knives, and they will never steer you wrong.

保持你的刀清洁和尖利，决不会让你作错了。

(1)sharp contrast鲜明对比；强对比，强烈对比

(1)sharp rise激增；激涨

(1)look sharp赶快；注意

(1)sharp increase急剧上升；飞涨

(1)sharp drop暴跌

(1)sharp edge锐边；锐角部；清晰边沿