trade-off

自己翻译：This decision is the teade-off between efficiency and cost.

场景：如果我们想要保持长久的幸福就必须在工作和生活上保持平衡。

There has to be a trade-off between work and life if we want to keep our happiness longer.

参考朗文字典例句：

a trade-off between sth and sth

•There has to be a trade-off between quality and quantity if we want to keep prices low.如果我们想要保持低价，必须在质量和数量之间求得平衡