英语词汇trade up怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	trade up
释义	trade up [phrasal verb] : to sell something you own and buy a similar thing that is more expensive卖次买优；提高消费 They keep trading up, buying larger and larger houses.他们不停地升级，房子越买越大。 ⇒ Main Entry: ² trade
随便看	have sb on a string have sb or sth covered have sb or sth for lunch have sb's back have sb's ear have sb's number have sb taped have sb to thank for have sb to thank for sth have sb to yourself have seen better days have seen/known better days have shot your bolt have somebody all to yourself have somebody covered have somebody in mind have somebody in the palm of your hand have somebody on a string have somebody or sth covered have somebody or sth for lunch have somebody's back have somebody's ear have somebody's number have somebody taped have somebody to thank for

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