1) cross your fingers 兩指交叉以求好運

I have a big interview tomorrow! Cross your fingers for me! 我明天有一個很重要的面試啊！祝我好運吧！

2) wrapped around one's finger 能夠很容易地影響別人

That little girl has her dad wrapped around her little finger. He buys her any toy she wants! 這個小姑娘能很輕易地影響她爸爸。女兒想要什么玩具他都買！

3) green thumb 某人在種花或種菜方面很有才能

My mom has a huge green thumb! She grows a huge garden every summer. 我的媽媽在園藝方面很有才！她每年夏天在花園種很多東西！

4) I can't put my finger on it. 我弄不清到底是什么。

This coffee has a very interesting flavor! But I can't put my finger on what it is. I think it's vanilla! 這杯咖啡的味道很特別，但我喝不出這到底是什么口味。我覺是香草的味道。