trade up/down
phrasal verbwithtradeverbuk/treɪd/us/treɪd/
tobuysomething, usually ahouseorcar, that is ofhigherorlowervaluethan the one you already have:
买更贵/更便宜的东西(通常指房子或汽车)Financialadviserswarnagainsttradinguptoalargerhomeunlessyou aresureyou canaffordit.财务顾问们警告说除非确信付得起,不要换更大的房子。
Buying
- acquire
 - acquisition
 - acquisitiveness
 - bidding
 - bidding war
 - bite
 - invest
 - load up onsomething
 - misorder
 - money-off
 - order form
 - ordersomethingin
 - purchasing power
 - reimportation
 - repurchase
 - retail therapy
 - ROBO
 - ROPO
 - slate
 - splurge