也可写作tradeoff，不可数名词，译为“权衡”“折中”或根据语境译为“鱼和熊掌不可兼得”，来自短语“trade off”,可在写作口语中代替balance。
Life is full of trade-off. You cannot have your cake and eat it too.
trade-off between a and b
There must be a trade-off between quality and quantity for many manufactures.
But leaving the EU inevitably involve difficult trade-offs.
This decision is the result of the trade-off between efficiency and cost.
Study abroad is the result of the trade-off between my interests and future development.
