badadj.坏的；不好的；差的；疼痛的；严重的；有害的；腐败的；低劣的；不利的；不舒服的；不健康的n.坏人；坏事adv.非常；不好地Baduel巴杜埃尔

1. Children's bad behavior is often a reflection on their parents.
   小孩的坏品行常常有损父母的名誉。
2. His reputation was blighted by his bad behavior.
   他的名誉为他的行为不检所毁。
3. He is blind to her bad behavior.
   他对她的不良行为视而不见。
4. She was full of shame at her bad behavior.
   她对自己的不良行为感到羞耻。