Bite one's tongue

I had to bite my tongue to keep from telling her the truth.

A pie in the sky 空头支票

One's cup of tea喜欢或擅长的东西

Swimming is my cup of tea .

Look tasty 看起来很好吃

I'm kind of busy right now. 我现在没空。

You've really got to check it out .I guarantee you'll love it .

What a bore! 真讨厌。

You must be kidding.你一定在开玩笑。

I'm kidding you . 我开玩笑呢。

It makes me nod off .让我犯困。

Secret sorrow难言之隐

Henry is quite strange today,he must have some secret sorrow.