单词：trade-off
[经] 权衡, 物物交换
trade-off的用法和样例：
例句
- 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，就必须在质量和数量上权衡一番。
词汇搭配
- trade off交换，卖掉
- trade-off decision折中方案,权衡方案...
- trade-off analysis权衡分析
- time space trade off时间空间折衷...
- trade-off studies比较研究
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