| 词汇 | jack something up |
| 释义 | jack something up phrasal verb with jack verb uk/dʒæk/ us/dʒæk/ (LIFT) 用起重器顶起，用千斤顶托起 to raise a heavy object such as a car off the ground with a jack (INCREASE) informal disapproving（突然大幅地）提高（价格） to increase the price of something suddenly and by a large amount Once the tourists arrive, the restaurants jack up their prices. 游客一到，餐馆就大幅提价。 |
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