| 单词 | trade up |
| 释义 | ● ˌtrade ˈup to sell sth in order to buy sth more expensive 卖次买好；（卖掉原有的以便）买更贵的东西◆ We're going to trade up to a larger house . 我们打算卖掉房子，再买一座大点的。to give sth you have used as part of the payment for sth more expensive 以旧物折价添钱买较贵的东西；折价贴换See also trade |
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