1 PHRASAL VERB 用千斤顶托起(汽车等) If you jack up a heavy object such as a car, you raise it off the ground using a jack. 用千斤顶托起(汽车等)
2 PHRASAL VERB 不合理地抬高,哄抬(价格);大幅度增加(数量) To jack up the price or amount of something means to increase it to an unreasonable or unacceptable level. 不合理地抬高,哄抬(价格);大幅度增加(数量) [informal, disapproval]
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