jack something ↔ up phrasal verbphr v a) LIFTto lift something heavy off the ground using a jack 〔用千斤顶〕顶[托]起〔重物〕 Jack the car up higher – I can’t get the tire off. 把车再顶高些,轮胎卸不下来。
b) informalINCREASE IN NUMBER OR AMOUNT to increase prices, sales etc by a large amount 大幅度提高〔价格、销量等〕 They’re just interested in jacking up their profit margins. 他们只对大幅增加利润感兴趣。
jack up• I already put in a quarter, and now they want to jack it up.• Money for plaintiffs' lawyers and court costs will jack the total up to some $ 550m.
→ jack something ↔ up at jack2(PHRASAL VERB)