不轨

His bad behaviour has tarnished the good name of the school.

行为, 败坏了学校誉。

The boy’s misconduct cost his mother many sleepless nights.

这男孩行为,母亲许多夜得安眠。

Don't harbor unkind thoughts.

要心。

Their talk was slightly malicious.

们谈话有点儿心。