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1·The thought of Nick made her throat tighten.

一想到尼克就会让她的喉咙发紧。《柯林斯英汉双解大词典》

2·Some countries tighten monetary policy to avoid inflation.

一些国家紧缩货币政策以避免通货膨胀。《柯林斯英汉双解大词典》

3·The government has decided to tighten its immigration policy.

政府已决定收紧其移民政策。《柯林斯英汉双解大词典》

4·With the price increases, we are all having to tighten our belts.

由于物价上涨，我们都只好勒紧裤腰带了。《牛津词典》

5·It's important to tighten up the wheels properly, otherwise they vibrate loose and fall off.

把车轮拧紧很重要，否则它们会振动而松脱。《柯林斯英汉双解大词典》

6·It would be unseemly for judges to receive pay increases when others are having to tighten their belts.

在其他人都得勒紧裤腰带过活的时候给法官们加薪是不合适的。《柯林斯英汉双解大词典》

7·You can expect that noose to continue to tighten.

预计该趋势还将继续收紧。

8·Now, I could feel my hands sweat and my throat tighten.

现在，我能感觉到我的手在出汗，喉咙在发紧。

9·As an example of the latter point, he notes growing efforts at major universities to tighten grading standards and restore failing grades.

作为后一点的例子，他注意到各大大学在收紧评分标准和恢复不及格成绩方面的努力越来越大。

10·For example, the lungs and the heart muscle expand less successfully, the blood vessels become increasingly rigid, and the ligaments and tendons tighten.

例如，肺部和心脏肌肉扩张不太成功，血管变得越来越僵硬，韧带和肌腱收紧。

紧

1·This treatment helps tone the body, firm up muscles and tighten the skin.

这种治疗可以帮助保持体态，使肌肉变结实、皮肤紧致。《柯林斯英汉双解大词典》

2·The commission should not take the Microsoft decision as encouragement to jump on every dominant company when competitors complain about it, for firms' grips can loosen as well as tighten.

欧洲委员会不应该把对微软的处理推而广之。 一有竞争者抱怨，就约束占优势地位的公司，这种做法并不合理，因为一些公司的垄断可紧可松。

3·Spending is predicted to fall by as much as 6% this year, as shoppers close purses and tighten belts.

今年，预计消费减少6%，原因是购物的人们都攥紧钱包，扎紧了腰带。

4·I watched him sit on a step to tighten the LACES on his dress shoes.

我看着他坐在石阶上，系紧礼服鞋的鞋带。

5·Thread the wide end through the top of the knot and pull it down to tighten.

让宽端从结里传过来，然后向下拉紧。

勒紧

1·It would be unseemly for judges to receive pay increases when others are having to tighten their belts.

在其他人都得勒紧裤腰带过活的时候给法官们加薪是不合适的。《柯林斯英汉双解大词典》

2·Clearly, if you are spending more than your income, you'll need to tighten your belt.

很显然，如果你现在花钱就入不敷出，以后就不得不勒紧腰带了。《柯林斯英汉双解大词典》

3·The deal also threatens to tighten fiscal policy further in 2012, when the recovery is still struggling to establish itself.

这协议也威胁在2012年要进一步勒紧财政政策，当经济正努力复苏。

4·We all have to tighten our belts until your father finds another job.

在你父亲找到另一份工作之前，我们都要勒紧裤带。

5·We all have to tighten our belts until your father finds another job.

在你父亲找到另一份工作之前， 我们都要勒紧裤带。

绷紧

1·You want to tone and tighten your legs.

你要想调节和绷紧你的腿。

2·You want to tone and tighten your legs. Here's how to do that.

你要想调节和绷紧你的腿。这里有如何做的方法。

3·But just changing it up slightly and walking on a 10 degree incline (incline a treadmill) can jumpstart your ability to tone and slim your legs... as well as tighten your butt.

但只要轻微地向上改变一下，走在一个10度的斜坡上(把一辆单车倾斜)就能快速启动你的能节去调节并纤细你的腿——同时绷紧你粗大的一端。

4·At this point, the PM needs to tighten up the change control or risk failing to deliver on the team's commitments.

此时，项目经理需要绷紧变更控制或者无法按要求交付的风险。

5·She saw his jaw tighten and his face lose its colour.

她看见他的下巴绷紧，脸色煞白。

缩紧

1·So there is the short-term issue of how to tighten policy safely.

所以短期问题是如何安全缩紧政策。

2·Mahonia, calendula, gotu kola and thyme extracts cleanse the skin and tighten pores, whilst hydrating hyaluronic acid and soothing aloe vera help combat dryness and irritation.

十大功劳、金盏花、积雪草和百里香萃取净化肌肤并缩紧毛孔，同时透明质酸补充水份、芦荟镇静肌肤，帮助改善干燥和疼痛。

上紧

1·This mechanical seal is produced by the mating and slight crushing of the threads when a wrench is applied to tighten the fittings.

当用扳手上紧配件时，这种机械密封会在螺纹配合和轻微的变形来生成密封效果。

2·Attach the regulator. Fasten the regulator to the cylinder and tighten the inlet nut securely.

连接调整器。把调整器紧固在钢瓶上，安全地上紧入口螺母。

3·Fasten the regulator to the cylinder and tighten the inlet nut securely.

把调整器紧固在钢瓶上，安全地上紧入口螺母。

4·Make up and tighten the bolts diagonally when the X-tree is installed.

安装采油树是要对角上紧螺栓。

5·Tighten leaf spring press until bushing is extracted from leaf spring.

上紧叶片弹簧加压机直到衬套被拔出叶片弹簧。

变紧

1·After crossing the ditch where the bridge used to be, my chest began to tighten and my heart began to race.

在路过那座桥以前所在的河道时，我的胸膛开始变紧，并且心跳开始加速。

2·As lending standards tighten, consumer demand could suffer, possibly prompting a recession in the United States.

随着放贷标准变紧，消费需求会受到打击，可能会导致一次美国经济的不景气。

(1)tighten up加强；使紧密；拉紧；使更牢固

(1)tighten one's belt节约度日；束紧腰带