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·There is an acute shortage of water.

水严重短缺。《牛津词典》

2·Her judgement is acute.

她的判断敏锐。《牛津词典》

3·He collapsed from acute renal failure.

他的身体因严重的肾衰竭而垮掉了。《柯林斯英汉双解大词典》

4·He is an acute observer of the social scene.

他是个敏锐的社会现状观察者。《牛津词典》

5·When she lost her sight, her other senses grew more acute.

失明以后，她的其他感官变得更加敏锐了。《柯林斯英汉双解大词典》

6·This acute infection of the brain is almost invariably fatal.

这种急性大脑传染病几乎总是导致死亡。《牛津词典》

7·I was suffering from acute sunstroke, starvation and exhaustion.

我当时正受着急性中暑、饥饿和疲惫之苦。《柯林斯英汉双解大词典》

8·A patient going through acute detox will have an assigned nurse nearby.

每位急性脱瘾治疗的病人身边会派有位护士。《柯林斯英汉双解大词典》

9·Exorbitant housing prices have created an acute shortage of affordable housing for the poor.

过高的房价使穷人负担得起的房源严重短缺。《柯林斯英汉双解大词典》

10·A bad tooth can cause acute pain.

一颗蛀牙可以引起激烈的疼痛。《新英汉大辞典》

急性

1·This acute infection of the brain is almost invariably fatal.

这种急性大脑传染病几乎总是导致死亡。《牛津词典》

2·I was suffering from acute sunstroke, starvation and exhaustion.

我当时正受着急性中暑、饥饿和疲惫之苦。《柯林斯英汉双解大词典》

3·A patient going through acute detox will have an assigned nurse nearby.

每位急性脱瘾治疗的病人身边会派有位护士。《柯林斯英汉双解大词典》

4·There are two main forms of lower back pain: acute and chronic.

下背部的疼痛发主要有两种类型：急性和慢性。

5·Pityriasis rosea is an acute, benign, self-limiting skin rash.

玫瑰糠疹是一种急性的良性自限性皮疹。

严重的

1·There is an acute shortage of water.

水严重短缺。《牛津词典》

2·He collapsed from acute renal failure.

他的身体因严重的肾衰竭而垮掉了。《柯林斯英汉双解大词典》

3·Exorbitant housing prices have created an acute shortage of affordable housing for the poor.

过高的房价使穷人负担得起的房源严重短缺。《柯林斯英汉双解大词典》

4·As well as those chronic problems, the EU faces an acute crisis in its economic core, the 16 countries that use the single currency.

除了这些长期的问题之外，欧盟的经济核心——16个使用单一货币的国家——也面临着严重的危机。

5·Moreover, the problem of oversensitivity to light is even more acute in the fall, when the leaf is busy preparing for winter by dismantling its internal machinery.

此外，对阳光过度敏感的问题在秋天更为严重，因为此时叶子正忙着通过“拆卸内部机构”为冬天做准备。

敏锐

1·When she lost her sight, her other senses grew more acute.

失明以后，她的其他感官变得更加敏锐了。《柯林斯英汉双解大词典》

2·Because boys generally have more acute vision and learn best through touch.

因为通常来说，男生的视觉更加敏锐，通过接触的方式学习得更好。

3·Sharp meant genuinely discerning, alert, acute rather than quick-witted or clever.

“Sharp”的意思是真正具有辨识力、警觉、敏锐，而不是机敏或聪明。

4·While it is true that the olfactory powers of humans are nothing like as fine as those possessed by certain animals, they are still remarkably acute.

虽然人类的嗅觉能力确实不如某些动物灵敏，但也是非常敏锐的。

5·Because boys generally have more acute vision, learn best through touch, and are physically more active, they need to be given hands-on lessons where they are allowed to walk around.

因为男孩一般有更敏锐的视觉，通过触觉学习效果最好，而且身体更活跃，所以需要给他们提供 实践 课程，让他们四处走动。

剧烈

1·Although we do not know the long-term consequences of separation or deprivation, we do know that they can produce acute immediate distress.

虽然我们不知道分离和丧失亲人的长期后果，但我们知道它们能立即引起剧烈的悲痛。

2·With his headache becoming more acute, he contemplated crossing the interstate to search the other side.

随着他的头痛变得更加剧烈，他打算穿过州际公路去搜寻另一边。

3·If you don't know how to get into the pose without acute pain, signal your teacher so they can help you or give you a modification.

如果你不知道怎么样才能不要剧烈的疼痛就能做出那个姿势，告诉你的老师，他也许可以帮助到你或是减缓你的疼痛。

4·While the effects of acute stress on hair are well understood, what isn’t as clear is how chronic or long-term stress affects hair loss.

我们可以理解这种剧烈的压力对头发的影响，但是不太清楚那种慢性或者长期的压力是如何影响脱发的。

5·If you feel sharp, acute pain, back out of the pose and re-align.

如果你感到尖锐的剧烈的疼痛，收回之前的姿势再重新做一遍。

激烈

1·A bad tooth can cause acute pain.

一颗蛀牙可以引起激烈的疼痛。《新英汉大辞典》

2·We may add to this that the housing boom we have just been through represents a particularly acute expression of this scenario.

我们可以把代表着这个游戏关卡中异常激烈的表现我们刚刚经历的房地产繁荣也加上。

3·Competition among universities for this funding will therefore become more acute, in a context where traditional income sources are expected to stagnate or decrease.

高校之间的为获得这类资助的竞争将更加激烈，考虑到传统的收入来源在将来将停止增长或者减少。

4·The risk is that acute competition in those areas drives down margins.

风险在于这些领域的激烈竞争压低了利润率。

5·I am at easy in my creation state and have no little acute. I paint likes I play. I like the state, I feel painting is my happy times.

我的创作状态非常轻松，一点也不激烈。我画画和玩一样，我很喜欢那种状态我觉得画画是我最快乐的时候呢！

锐

1·Leaves 15 - 20, ovate to obovate or oblanceolate, acute or obtuse, 6 x 2.7 cm, to 3 mm thick, dark olive green tinged purple, with transverse and longitudinal markings.

叶15～20，卵形到倒卵形或倒披针形，有锐尖或钝圆，6×2.7厘米，3毫米厚，深橄榄绿色微染紫色，有横向和纵向的暗纹。

2·The results show that the larger the acute Angle between valley trend and regional maximum principal stress is, the more intensive its influence on rock stress in valley is.

结果表明：当河谷走向与区域地应力场中最大主压应力方位的锐夹角越大时，它对河谷地应力场分布的影响越大。

(1)acute myocardial infarction急性心肌梗塞

(1)acute pancreatitis胰腺炎；急性胰腺炎

(1)acute toxicity急性毒性，急性中毒

(1)acute leukemia急性白血病

(1)severe acute respiratory syndrome严重急性呼吸系统综合症

(1)acute appendicitis急性阑尾炎