音标：['taitn]
vt. 勒紧, 使变紧
vi. 变紧, 绷紧
【化】 使紧密
【经】 紧缩
在线英汉词典

tighten的短语、例句：

tighten v 1 [I, Ipr, Ip, Tn, Tn.pr, Tn.p] ~ (sth) (up) (a) (cause sth to) become tight or tighter （使某物）变紧
This screw needs tightening. 这螺钉需再拧紧些.
tighten (up) the ropes 拉紧绳子
He tightened his grip on her arm. 他紧抓住她的手臂. (b) (cause sth to) become stricter （使某事）变得更严格
Controls have gradually tightened. 控制逐渐加强.
tighten up security 使安全措施更严密. 2 (idm 习语) loosen/tighten the purse-strings => purse. tighten one´s `belt eat less food, spend less money, etc because there is littleavailable 勒紧腰带（省吃俭用）
The management warnedof the need for further belt-tightening, ie economy. 资方提醒有必要进一步节约. 3 (phr v) tighten up (on sth) become more careful, vigilant or strict 变得更小心、 警惕或严格
The police are tightening up on drunken driving. 警方目前采取严厉手段对付醉酒驾车行为.