jack是什么意思

详细释义

• 0 to raise a heavy object such as a car off the ground with a jack -- 用起重器顶起，用千斤顶托起

• 1 to increase the price of something suddenly and by a large amount -- （突然大幅地）提高（价格）

  • Once the tourists arrive, the restaurants jack up their prices. 游客一到，餐馆就大幅提价。