trade down phrasal verbphr v SELLto replace something you own with something cheaper, or buy a cheaper type of thing than before 以便宜的东西取代；购买较便宜的东西 to Many of their customers are trading down to cheaper cigarettes. 他们的很多顾客都开始降低消费购买较便宜的香烟了。
trade to• Prices steadied and ended the day largely unchanged after November traded down to £677 a tonne, the lowest for 14 years.• Nor is the team likely to trade down to assume a draft position where it could legitimately take Nash.
→ trade down at trade2(PHRASAL VERB)