1. 这个决定是权衡效率和成本后的结果。
翻译：This decision is an outcome after a trade-off between efficiency and cost.
答案：The decision is a trade-off between efficiency and cost.
2. 场景：很多上班族都面临着工作和家庭的权衡。
造句：Many office workers are facing a tradeoff between work and family.
笔记：
释义：trade-off/tradeoff：a balance between two opposing things, that you are willing to accept in order to achieve something.
tradeoff 是可数名词。
关联记忆：You cannot have your cake and eat it too. 鱼与熊掌不可兼得。
例句：
1) Deciding which modules to display in Phenomenal English WeChat menu is a matter of trade-off.
2) Life is full of trade-offs. You cannot have your cake and eat it too.
3) There must be a trade-off between quality and quantity for many manufacturers.
4) But leaving EU inevitably involves difficult trade-offs.
