在比赛开始前，两个队先面对面排好队。

Before the play started, the teams lined up facing each other.

youdao

但在开始之前，让我先庆祝一下数据做得非常好的两件事。

But at the outset let me celebrate two things data does really well.

youdao

“不懂法律并不意味着当你触犯法律时，法律会对你网开一面。”来自英国的律师大卫·艾伦·格林说。那么，你觉不觉得我们应该在按下“发送”之前，最好先花一两分钟思考一下我们在社交媒体上使用的文字或表情符号？

"Not knowing the law doesn't mean the law will treat you any differently if you break it." says David Allen Green, a lawyer from the UK. So, do you think we'd better spend a minute or two thinking about the words or emojis we use on social media before we press "send"?

youdao

Then he flung outward, feet first, with a swish, Kicking his way down through the air to the ground.

然后，纵身一跳，他两脚先伸出去，在空中乱踢乱舞，于是飕的一声，降落到地面。

耶鲁公开课 - 现代诗歌课程节选

So, we'll start today talking about the two kinds of molecular orbitals, we can talk about bonding or anti-bonding orbitals.

今天我们先来,讨论两种分子轨道，我们要讨论成键和反键轨道。

麻省理工公开课 - 化学原理课程节选

When I think about the two dimensions I'd like to explore first, I'd like to let you think about for a while the purpose of education.

在想两种形式的教育时,我要先进行探究，我希望你们先思考一下,教育的目的。

麻省理工公开课 - 媒体、教育、市场课程节选