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》

We need to tighten the grip we have on the market.

我们得加强对市场的控制力。

《牛津词典》

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。

《柯林斯英汉双解大词典》

When this happens, poor people have to tighten their belts and live on less money than usual.

VOA: special.2009.10.18

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。

耶鲁公开课 - 金融市场课程节选

To move an arm, the brain sends a message that causes the chest muscles to tighten.

VOA: special.2009.03.10

He criticized the Federal Reserve's decision to tighten the money supply early in the cycle.

FORBES: Milton Friedman Dies

The only thing that can close this gap is to tighten the labor market.

CNN: Controversial immigration report may be right

The Congress will also be asked to rubber-stamp moves to tighten up on friendly internationals.

BBC: Fifa to review rules over player nationality