讲解文本：

今日句型：
I’m supposed to do：
我应该

今日例句：
I’m supposed to go on a diet.
我应该节食。
go on a diet 节食

I’m supposed to get a raise.
我应该涨工资。
raise 上升

I’m supposed to be home before 10 PM.
我应该在十点前回家。

You're not supposed to smoke in here.
你不可以在这儿抽烟。

I'm not supposed to be here.
我不应该出现在这里的！

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