given back的用法和樣例：
例句
- I must give back the two books to the library before Friday.
星期五之前我必須把這兩本書歸還圖書館。 - A letter for me left, by mistake, at my neighbor's house was kept for two days and then given back to the postman.
我的一封信誤投給鄰居了，在那裡放了兩天之後又退給了郵遞員。 - Has he given back the tools he borrowed from you?
他向你借的那些工具歸還了沒有？
