hard cases

• 困难的案件

hard cases的用法和样例：

例句

1. Guy has turned into a really hard case since he's been in prison.
   盖伊自从进了监狱后，已变成一个实在不可救药的人了。
2. He was a fellow clerk of mine, and a hard case.
   他是我的同事，一个不可救药的人。