不负责任

• be remiss of
• be irresponsible for
• flibbertigibbet
• breach of duty

例句

1. 管理部门对留在房间的个人财产不负责任。
   The management is not responsible for property left in the hotel room.
2. 她那不负责任的行为使她父亲许多夜不得安眠。
   Her irresponsible behaviour cost her father many sleepless nights.
3. 你这样不负责任的行为，不能不受到责备。
   You can scarcely expect to escape reproof for such irresponsible behavior.