英 [ˈtaɪt(ə)n] 美 [ˈtaɪt(ə)n]
v. （使）变紧，（使）紧固；旋紧，拧紧；抓紧，攥紧；（由于生气而）（嘴巴）撅起，（双唇）紧闭；（使）（肌肉或身体某部位）变得僵硬，绷紧；使（规定、政策、制度）更加严格，使更加有效；（对……）严加控制，（使）加强控制；<美>（比赛）变得激烈（紧张）
第三人称单数tightens
现在分词tightening
过去式tightened
过去分词tightened
tighten /ˈtaɪtən/ TEM4 [ tightening tightened tightens ]
及物动词/不及物动词 If you tighten your grip on something, or if your grip tightens, you hold the thing more firmly or securely. 抓紧
Luke answered by tightening his grip on her shoulder.
卢克回应了，紧紧抓住她的肩膀。
Her arms tightened about his neck in gratitude.
她的双臂紧紧搂住他的脖子，充满感激。
及物动词/不及物动词 If you tighten a rope or chain, or if it tightens, it is stretched or pulled hard until it is straight. 使 (绳或链) 拉紧; 拉紧
The anchorman flung his whole weight back, tightening the rope.
这位排尾压阵队员用尽全部的力气往后拽，把绳子拉紧。
及物动词/不及物动词 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. 对…加强控制; 加强控制
He knows he has considerable support for his plans to tighten his grip on the machinery of central government.
他知道他那些对中央政府加强控制的计划拥有相当多的支持。
及物动词 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. 拧紧 (螺丝、螺帽等)
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。
动词词组 Tighten up means the same as . 拧紧 (同 )(tighten)
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。
不及物动词 If a part of your body tightens, the muscles in it become tense and stiff, for example, because you are angry or afraid. (身体部位因生气或害怕) 变得僵硬
Sofia's throat had tightened and she couldn't speak.
索菲娅的喉咙哽住了，说不了话。
及物动词 If someone in authority tightens a rule, a policy, or a system, they make it stricter or more efficient. 使 (规定、政策或制度) 更严格; 使更有效
The United States plans to tighten the economic sanctions currently in place.
美国计划使现行的经济制裁更加严厉。
动词词组 Tighten up means the same as . 使…更严格
Until this week, every attempt to tighten up the law had failed.
到本周为止，一切严格执法的努力都失败了。
to tighten your belt→seebelt
make tight or tighter
同义词： fasten
become tight or tighter
The rope tightened
restrict
同义词： stiffen / tighten up / constrain
narrow or limit
同义词： reduce
从趋向来看，目前市场运行的内在机理是在经济回落、物价高位、政策保持紧缩(Tighten)的背景下对差异风格、板块的估值差的修正。尤其体现为以创业板为代表的高估值的个股相对于权重板块的估值溢价的修改，即上证指数...
... 须,应,得〖must〗 捻绳使紧〖tighten〗 矫菌桂以纫蕙兮,索胡绳之ð« ¥ð« ...
... the Pacific 太平洋 tighten 使变紧，使更牢固 tropical 热带的 ...
...多车主(Owners)在给车加完油后凡是不会去查抄油箱盖是否(Whether)拧紧，若是韩先生没有旁人的指点接连开着油箱盖没拧紧(Tighten)的车子上路，那恶果将很危急。举动车主(Owners)，应当有需要的安静认识，外表看似快乐无比的女人，其心里不一定亦无比快乐。
绷紧；变紧
The thought of Nick made her throat tighten.
一想到尼克就会让她的喉咙发紧。
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。
The government has decided to tighten its immigration policy.
政府已决定收紧其移民政策。
When this happens, poor people have to tighten their belts and live on less money than usual.
VOA : special.2009.10.18
To move an arm, the brain sends a message that causes the chest muscles to tighten.
VOA : special.2009.03.10
So that would mean that the Fed should be raising interest rates to try to tighten up the economy and bring the inflation rate down.
所以，这意味着,美联储应该提升利率,以试图加强经济,并且将通货膨胀率降低。
金融市场课程节选 : 耶鲁公开课
Yet,the movement is limited, and requires the person to tighten muscles in the back or arms.
VOA : special.2009.03.10
The tags were introduced to track students and help tighten control of school funding.
Instead, the companies would tighten their relationship regarding use of Microsoft's Windows software, the person said.
He criticized the Federal Reserve's decision to tighten the money supply early in the cycle.