a bad egg

例句：

1. 1.He was a bad egg who always tried to steal from others.
   他是个坏蛋，总是试图从别人那里偷东西。
2. 2.The bad egg in the office is causing trouble for everyone.
   办公室的那个坏蛋正在给每个人带来麻烦。
3. 3. The bad egg in the group always tries to sabotage other people's work.
   这个团体里的坏蛋总是试图破坏别人的工作。