This time central banks are furiously ratcheting up rates.

但这一次，各国央行都在疯狂地加息。

News of the arrest comes as the U.S. is ratcheting up economic sanctions on Tehran.

逮捕消息公布之时正是美国加大对伊朗经济制裁之时。

According to a theory called Muller's ratchet, that's not good.

根据穆勒棘轮效应，这不是好事。

I think we're too ratchet to win an award.

我认为我们太过棘手而无法赢得奖项。

Tehran and Washington ratcheted up the rhetoric.

近日，德黑兰和华盛顿的言辞已经越来越激烈。

Those kids at rival school Rosemount High are pretty ratchet, huh?

我们竞争对手罗斯蒙特高中的那些孩子挺烦人的，对吧？

It's their anger at the summit not ending well but it's also ratcheting up pressure for future negotiation.

他们生气峰会没有按照他们期望的结束，但这也增加了未来谈判的压力。

Pressure's been ratcheting up ever since. There's been sanctions back and forth.

自那以后，压力在不断上升。两国互相施加制裁。

This ratcheting up of US pressure for a peace deal in Yemen is one result.

美国对也门和平协议的压力大增就是其结果之一。

But Black Friday is only the penultimate attempt by retailers to ratchet up their sales.

但黑色星期五也只是零售商提高销售额的倒数第二次尝试。