1PHRASAL 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)
They jacked up the car. [VERBPREP. noun]
他们用千斤顶托起了汽车。
All I had to do was jack the car up and put on the spare. [VERB noun PREP.]
我要做的就是用千斤顶把汽车托起来,再把备胎换上。
2PHRASAL 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]
The plan would cost so much that the company would have to jack up its prices. [VERBPREP. noun]
这一计划耗资巨大,公司将不得不大幅度提高价格。
Inflation has jacked up the rate of unemployment. [VERBPREP. noun]