固紧（tightenup的现在分词）

lightening up───放松，不要生气

straightening up───好转；改正；清理

lighting up───点火

tighten up───加强；使紧密；拉紧；使更牢固

tightened up───加强；使紧密；拉紧；使更牢固

tightening───v.（使）变紧；绷紧；（使）（身体的某一部位）变得僵硬；加强（规则、法律等）；（比赛）变得激烈（tighten的现在分词）；n.（身体的）绷紧，僵直；（规则、法律等的）加强

tightenings───拧紧

tightens up───加强；使紧密；拉紧；使更牢固

straightening out───清理；使成直线；澄清；改正

The police are tightening up on under-age drinking.───警方正在采取更加严厉的措施对付未成年人饮酒的问题。

Now Facebook has accepted this needs tightening up.───现在Facebook已经接受了绷紧的需要。

It needs tightening up a little.───它还需要再收紧些。

As he was tightening up the lug nuts, she rolled down the window and began to talk to him.───当他在拧螺母的时候，老太太摇下车窗，并开始和他讲话。

Credit markets have begun tightening up a bit, but let's stick with that figure.───虽然信贷市场开始有所趋紧，但我们还是使用这个数字。

And they are calling for more effective policing, pointing to how tightening up in France has had a dramatic effect on drivers' behaviour.───同时，保险公司协会呼吁更有效的政策，并指出在法国紧缩的政策对规范驾驶者的行为效果显著。

It is essential that, in tightening up the science, excessive constraints are not placed on communication.───关键在于，为了加强这门科学，不应该对传播施加过多的限制。

He should be responsible for reorganizing and tightening up the local administration.───他应该对重新组织和加紧地方政府机构管理负责任。

While retailers may be tightening up on hiring seasonal help, don't let this scare you away from your holiday job hunt.───虽然零售店主可能在雇佣季节性人手上有所限制，但是不要被这点吓到了而停住了在假期找工作的脚步。

A recent decision tightening up the laws relating to overseas players will greatly restrict the flow of foreigners to Ireland.

The police are tightening up on drunken driving.

This will prevent the seam from tightening up with the result that it could be shorter than the surrounding fabric.

The police are tightening up on under-age drinking.

Or it may be that the race is in fact tightening up as the Nov. 5 Election Day nears.

The brake cable needs tightening up.

And it tones muscles, tightening up arms and cinching in that waistline.

The government is tightening up public security.

The tightening up of safety standards at nuclear power plants inevitably followed the reactor accidents.