I think "trade sth. off" is different from "trade-off".

dior (Dior)
trade sth. off means 以...换取,以...抵消 v. For example: The government hopes to retain its popularity by trade off rising unempoyment against the fall in inflation.

trade-off means 权衡、协调 n. For example: In order to keep prices low, there has to be a trade-off between quality and quantity.
2001-9-13 -05:00

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