dud

美[dʌd] 英[dʌd]

adj. 无价值的

n. 哑弹；无用的人或物

sp. （复数）duds: 衣服；个人物品.

近义词：flop，washout，failure，fiasco，dampsquib，letdown，dog，disappointment，useless，worthless，ineffective，nogood，broken，duff，turkey，bomb，misfire，

Noun

someone who is unsuccessful
an explosion that fails to occur
an event that fails badly or is totally ineffectual;
"the first experiment was a real turkey" "the meeting was a dud as far as new business was concerned"

Adjective

failing to detonate; especially not charged with an active explosive;
"he stepped on a dud mine"

用作形容词(adj.)

How can we be expected to carry out our jobs with the dud equipment you gave us?你怎么能指望我们用这些你给的烂设备来完成工作呢？

用作名词(n.)

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