1. I'm afraid (that) ... 恐怕... that常被省略

I'm afraid it is going to rain this afternoon.

恐怕今天下午会下雨

overweight 表示“超重的”

前面加人表示某人体重过重

Anyone can see that you're overweight, you should go on a diet.

任何人都能看出来你体重过重，你应该节食了

2. Let me see=Let's see 之后长接破折号（—），表示停顿之意，说话者可能在思考、想或计算

How long are you going to stay here?

Let me see/let's see— five days, I think.

你打算在这呆多久？

我看看——我想是5天吧。

3.That's no t too bad. 还不算太糟

That's too bad. 太糟糕了/太可惜了

=What a shame. (shame 遗憾)

I'm afraid I can't go to your party tonight.

Oh, that's too bad./what a shame.

恐怕今晚不能去参加你的派对了

哦，太可惜了！

4. till (=until) 作连词，之后接主语和动词；作介词之后接名词作宾语

They will not leave till/until the sun goes down.

他们直到太阳下山才会离开。

I'll stay here till/untill Friday.

我将一直待到这个礼拜五

5. Have a nice flight.

=I hope (that) you (may) have a nice flight.

类似的还有：

Have a good time.

祝你玩得愉快

Have a nice day.

祝你今天过得愉快