"We can't let that happen," says Senator Mike Kowall, the lead sponsor of four bills recently introduced.

“我们不能让这种情况发生。”参议员迈克·科瓦尔说。迈克·科瓦尔是最近提出的四项法案的主要发起人。

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Tip number four is to let the other person do a great amount of talking.

第四条建议是让对方多说话。

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Let these four reinvention stories inspire you.

以下四个再就业例子将会重新激发你的灵感。

youdao

The four levels of rooms center on a beautiful courtyard with a glass ceiling to let light shine in.

VOA: special.2009.01.11

Let's say you have to go through three or four operations to get a final number, well, do it algebraically.

让我们说,你不得不通过3-4个操作,才能得到最终的数，好吧，用代数方法求解。

麻省理工公开课 - 固态化学导论课程节选

Well, I'm going to get back, let's just draw a bigger square than usual that's roughly four times the size.

嗯，返回的是，我画一个更大的方形,大致上是4倍的大小。

哈佛公开课 - 计算机科学课程节选

"With an MCL tear, you let it heal for two to four weeks and let the scar tissue build up, and only then do you want to go in and do the ACL reconstruction, " Webb said.

CNN: Vonn's injury 'career-delayer,' not 'career ender'

How Republicans and Democrats in Washington choose to answer that question will have a major impact on the next four months for the US economy, let alone four years.

BBC: US election: Four more years... of what?

So as you all start gearing up for the next four days, let me just put some things in perspective, just how close these elections are.

WHITEHOUSE: The White House