新东方-柯林斯雅思备考词典

tighten

英 [ˈtaɪtən]

[VERB]

词汇频率：

PHRASAL VERB. 短语动词

tighten up
1. [PHRASAL 短语] 拧紧（同）tighten）
Tighten up means the same as tighten.
双语例句
例：
It's important to tighten up the wheels properly, otherwise they vibrate loose and fall off.
把车轮彻底拧紧很重要，否则它们会因振动而松脱、掉下来。
2. [PHRASAL 短语] 使…更严格（同）tighten）
Tighten up means the same as tighten.
双语例句
例：
Until this week, every attempt to tighten up the law had failed.
到本周为止，一切旨在严格执法的努力都失败了。

VERB. 动词

tightens , tightening , tightened
1. [I 不及物动词] 抓紧
If you tighten your grip on something, or if your grip tightens, you hold the thing more firmly or securely.
双语例句
例：
Luke answered by tightening his grip on her shoulder.
卢克的回应是把她的肩膀抓得更紧了。
例：
Her arms tightened about his neck in gratitude.
她充满感激，双臂紧紧搂住他的脖子。
2. [I 不及物动词] （使）（绳或链）拉紧
If you tighten a rope or chain, or if it tightens, it is stretched or pulled hard until it is straight.
双语例句
例：
The anchorman flung his whole weight back, tightening the rope.
这位压阵队员用尽全部的力气往后拽，把绳子拉紧。
3. [I 不及物动词] （对…）加强控制
If a government or organization tightens its grip on a group of people or an activity, or if its grip tightens, it begins to have more control over it.
双语例句
例：
He knows he has considerable support for his plans to tighten his grip on the machinery of central government.
他知道他对中央政府机制加强控制的计划拥有相当多人的支持。
4. [T 及物动词] 拧紧（螺丝、螺帽等）
When you tighten a screw, nut, or other device, you turn it or move it so that it is more firmly in place or holds something more firmly.
双语例句
例：
I used my thumbnail to tighten the screw on my lamp.
我用拇指指甲拧紧了灯上的螺丝。
5. [I 不及物动词] （身体部位因生气或害怕）变得僵硬
If a part of your body tightens, the muscles in it become tense and stiff, for example, because you are angry or afraid.
双语例句
例：
Sofia's throat had tightened and she couldn't speak.
索菲娅的喉咙哽住了，说不出话来。
6. [T 及物动词] 使（规定、政策或制度）更严格 , 使更有效
If someone in authority tightens a rule, a policy, or a system, they make it stricter or more efficient.
双语例句
例：
The United States plans to tighten the economic sanctions currently in place.
美国计划加大现行经济制裁的力度。