好词典

jack

UK /dʒæk/US /dʒæk/

词源

源自中古英语'jakke',最初作为男子名使用(如Jack and Jill),后衍生出多种含义。扑克牌中的J可能源自'knave'(侍从)的替代称呼。

noun

❶ 指一种用于举起重物的工具,通常由金属制成,通过杠杆原理工作。常见于汽车维修时顶起车辆。

“He used a jack to lift the car and change the flat tire.”

(他用千斤顶抬起汽车更换漏气的轮胎。)

“Every driver should keep a jack in the trunk for emergencies.”

(每位司机都应在后备箱备一个千斤顶以防万一。)

❶ 指扑克牌中的J牌,图案为年轻侍从形象,牌面价值通常介于10和Q之间。

“He won the game with a pair of jacks.”

(他凭借一对J赢得了这局牌。)

“The jack of hearts is sometimes called the 'one-eyed jack'.”

(红桃J有时被称为'独眼杰克'。)

同义词:lifting device, card

verb

❶ 用千斤顶抬起物体,也引申指突然提高价格或数值的行为。

“They jacked up the car to inspect the underside.”

(他们把车顶起来检查底盘。)

“The store jacked up prices during the holiday season.”

(这家商店在节假日期间抬高了价格。)

同义词:lift, raise, hoist

常见短语

jack of all trades — 形容一个人什么都会一点但不精通,中文常译作'万事通'或'三脚猫'。

“My uncle is a jack of all trades but master of none.”

(我叔叔样样都会但都不精通。)

hit the jackpot — 字面指中头奖,引申为获得巨大成功或意外之财。

“She hit the jackpot with her new invention.”

(她的新发明让她大获成功。)