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一、用来指人
All the workers want a pay increase, every man Jack of them.
全体工人无一例外地要求增加工资。
every man Jack 或every Jack one是“每个人”、“人人”的意思。
Jack of all trades and master of none
万事皆通而一无所长的人
a Jack on both sides
模棱两可，两面派
Jack at a pinch
临时拉来帮忙的人
All work and no play makes Jack a dull boy.
谚：只工作不玩，聪明的孩子也会变傻。
All shall be well, Jack shall have Jill.
谚：有情人终成着属。
Jack among the maids
讨好女人的男子
Jack would be a gentleman if he had money.
谚：低微的人有钱也会成为绅士。
Jack is as good as his master.
谚：伙计不比老板差，卑贱者未必不如高贵者。
Jack in the water
码头打杂工
cheep Jack
卖廉价货物的小贩
a Jack in office
自命不凡的小官吏，官僚
Jack the lad
（青少年帮派中的）头号人物
二、指物
His elder brother died of Yellow Jack in the West Indies.
Yellow Jack指医学上的“黄热病”
the Union Jack
英联合王国国旗
Jacks are common to all that will play.
谚：乐器对于所有想要弹奏的人都一样。Jacks是古时类似钢琴的弹奏乐器。
a Jack of straw
稻草人
to make one's Jack
赚很多钱
