大家好，欢迎来的饼哥英语的频道，今天我们分享一个非常有用且地道的表达——root and branch, 这个短语的含义不是指“树根和树枝”，其正确的含义是：
root and branch 彻底；根本地
Racism must be eliminated, root and branch.
Our service is obsolete, requiring root and branch reform.
The company has changed root and branch since it was bought out by the media conglomerate.
The new administration is aiming to overhaul the tax system root and branch.
The laws were reformed root and branch.
Selfishness is one human being's instincts. It is very difficult to get it out root and branch.