如果你在考虑那个冒险的项目，你应该三思。

If you're considering that risky venture, you ought to ___think ___twice.

在再次信任他之前，她会三思。

She'll ___think ___twice before trusting him again.

在做出仓促决定之前，三思是明智的。

Before making a hasty decision, it's wise to ___think ___twice.