You've heard this before. About silencing your phones.

是你前听过的。把手机调成静音。

They have to pass all required courses before getting diplomas.

业前，们需要通过所有要求的考试。

Egged on by a friend, Cottle did one lap before pulling over.

受一个朋友的怂恿，Cottle上面开了一圈才停下来。

Venice could suffer more catastrophic floods before then.

此前，威尼斯可能遭受更大的洪水灾害。

Be reverent before each dawning day.

每个黎明到来前心怀敬意。

I labeled the parcel before posting it.

邮寄前，我把包裹贴上了标签。

Have you ever lived in a dorm before?

你前经历过住宿生活吗？

Towels and hairdryers Dry your hair gently with a towel before using the hairdryer.

毛巾和吹风机使用吹风机前，用毛巾轻轻擦干头发。

We put our pets before our own children sometimes.

我们有时甚至会把宠物看得比孩子还重要。

He is a comedian, never held elected office before.

是喜剧演员，此前没有从政经验。

Many of them had been displaced several times before.

其中许多人此前有过数次流离失所的经历。

So this history rouses two questions, who woke people before then?

那么回顾历史，你可能会问，那前是什么叫醒人们起床呢？

I never heard it before, but it's rotten nonsense.

" 我从来没听说过，但这是胡说八道。"

All businesses must scan the mobile APP before allowing entry.

所有营业场所都必须扫描一款手机应用程序才能让人进入。

Come and see, Amy! I've seen this painting before.

埃米，到这儿来！我一起看见过这幅画。

The Knave of Hearts was standing in chains before them.

红桃杰克正带着链子站们前面。

Mars is opening up like never before.

呈现我们面前的是火星前所未有的景观。

Formulate your ideas before you begin to write.

你开始动笔前，先系统地陈述一下你的思想。

But where have I seen her before?

但是我以前哪见过她呢？

Nobody had said that to him before.

以前从来没人这么说过。