This refers to a tool used for lifting or securing objects. It can also mean a man or a playing card.
指一种用于起重或固定物体的工具，也可指男人或纸牌。
| 单词 | jack |
|---|---|
| 音标 | [dʒæk] [dʒæk] |
| 释义 | n.["千斤顶","[信]插孔，插座","男人","纸牌中的J"] vt.["提高，增加","用千斤顶顶起","抬起","抬起，使想起"] vi.["<美>用篝灯打猎（或捕鱼）"] |
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