活學活用:Dozing off 打瞌睡

Oops, I was dozing off during the lecture. 哎呀，我在講座上睡覺了。

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I didn't catch any of it. 我什麼都沒有聽到。

Now, I'm gonna fall way behind. 現在，我會跟不上別人了。

to doze off=to fall asleep

I didn't catch any of it. =I don't understand.