Talk back - defy 抵抗顶嘴
The boy talks back to his mom all the time. 这个男孩总是跟妈妈顶嘴
Turn one's back - dislike 不喜欢 讨厌
Mr. Wang finally turned his back on his girlfriend. 王先生最后变得不喜欢他的女朋友。
On one's back - nag, nagging 唠叨
His mother is always on his back about diet. 他妈妈常为了饮食对他唠叨。
