著手前要深思熟虑，执行要果断有力。

Deliberate before you begin, then execute with vigour.

youdao

在你放手前，请允许我先放开你的手。

Before you let go, let me first let you go.

youdao

当你完成收臂并完成呼吸之后，迅速将手前伸并滑行。

Once you swing your thumbs in and get your breath, kick your hands forward and glide.

youdao

So in the story Dudley is there, pen knife in hand, but instead of the prayer or before the prayer, he says "Parker, would you mind?"

故事里达德利手拿小刀，没有做祷告，或是在做祷告前，他说，派克，介意我们杀你吗“

耶鲁公开课 - 公正课程节选

A little while ago there was a sniper, actually a pair of snipers killing people in Washington and the one thing everybody knew about it was there was a white van involved.

几年前出现了一个狙击手，确切地说，是一对狙手在华盛顿作案,大家都知道的一件事是,作案过程中有一辆白色小货车。

耶鲁公开课 - 心理学导论课程节选