took up the hatchet

• v. 开始(宣战)

took up the hatchet的用法和样例：

例句

用作动词 (v.)

1. The girl is taking up with the Smith boys.
   这女孩开始与史密斯家的男孩们交往。
2. He took to studying English 5 years ago.
   他五年前开始学英语。