New Words：

had better 最好；应该；还是
right away 马上，立刻
at once 马上，立刻；一起，同时

Sample Sentences：

You'd better go to bed to rest at once.
I'll go and pick her up right away/at once.
We'd better leave now or we'll miss the bus.
You make me sick! You'd better get out of my face at once!
You don't look well. You'd better go and see a doctor right away.

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