「三思而后行」英文怎么说？

think twice 

慎重考虑、再三考虑、三思而后行

A visible alarm makes burglars think twice.

一个显眼的警报器能使小偷有所顾虑。

You might want to think twice before buying an insurance policy from them.

在购买保险单之前，你可要再三考虑啊。

The intro

(Listening Comprehension)

Hello, it's Mr.Wong here. I would like to share a story I heard a while back with you guys. Some of you might have heard it before, but I'm trying to come up with a story to lead to today's phrase, so bare with me. Okay here we go. Once upon a time there lived two frogs in a marsh. They were very happy with their lot there. But as the hot summer approached, the marsh began to dry up. In a few days, the marsh got totally dry. So, the frogs decided to leave that place and look for some other shelter for themselves and reached a deep well. They sat on the edge of the well and peeped inside it. It had a lot of water in it. One of the frogs got so overjoyed to see the water and said, "This well looks quite a fit place for us to live. It will be cool and safe inside. Let's jump in !" The other frog was wise enough and replied, "Not so soon, my friend. We left the marsh when it dried up, so first thing how we could get out of this well if it gets dry." The first frog was speechless as he had realized that one must think twice before taking any step. And today's phrase of the day is "think twice". Check it out !

没看懂？请自己查字典！

(这才是真正的学习过程)