2007.08.03 : Should children get allowance in exchange for chores?
孩子做家务该付酬劳么？
介词词组in exchange for，为……交换
Taliban set a fresh deadline to free prisoners of the insurgent group in exchange for the lives of 21 South Korean hostages.
塔利班重新划定最终期限，以释放叛军囚犯换取21名韩国人质生命安全。
Live-In Attendant Care in Exchange for Free Rent
照料起居，租金全免（招聘启事）。
海纳百川，有容乃大；壁立千仞，无欲则刚。