trade.off 或 trade-off

tradeoff的音标和读音：
DJ音标发音： [ˈtreidˌɔ:f, -ˌɔf]
KK音标发音： [ˈtredˌɔf, -ˌɑf]

tradeoff的词性：
n.（名词）

1. An exchange of one thing in return for another, especially relinquishment of one benefit or advantage for another regarded as more desirable:
交易，交换：以一物换取另一物，尤指放弃一种利益或优势以换取另一种被认为更有价值的物品：

“a fundamental trade-off between capitalist prosperity and economic security”(David A Stockman)
“在资本主义繁荣与经济保障之间的基础性交易”(戴维A斯托克曼)