Talk back - defy 抵抗頂嘴
The boy talks back to his mom all the time. 這個男孩總是跟媽媽頂嘴
Turn one's back - dislike 不喜歡 討厭
Mr. Wang finally turned his back on his girlfriend. 王先生最後變得不喜歡他的女朋友。
On one's back - nag, nagging 嘮叨
His mother is always on his back about diet. 他媽媽常為了飲食對他嘮叨。