1 a little bird told me 天机不可泄露

"How did you know the news?"

"Oh, a little bird told me."

你怎么知道这件事的？

天机不可泄露！

2 as gentle as a lamb 天真无邪的；温文尔雅的

She is as gentle as a lamb. That's why everybody likes her.

她天真无邪，所以很多人都喜欢她。

3 be a chicken 做一个懦夫

Don't be a chicken. Talk to her about your love for her.

不要做懦夫，告诉她你有多爱她。

4 be a cold fish 冷血动物

He rarely talks to his colleagues. He's a cold fish.

他很少和他的同事说话。他很冷血。

5 be like a fish out of water 在一个环境中感到不舒服

After her divorce, she was like a fish out of water.

她离婚之后，过得很不自在。

6 chicken out 因为害怕拒绝做某事

He chickened out just at the time they were taking him to operating theatre.

当他们带他去手术室时，他因为害怕拒绝了。