| 单词 | dud |
| 释义 | dud n (infml 口) thing or person that fails to work properly 无用的物或人; 废物 Two of the fireworks in the box were duds. 盒子里的烟火有两个是坏的. The new manager is a complete dud. 新经理完全是个废物. This battery is a dud. 这电池是废的. dud, adj defective; worthless 有缺点的; 不完善的; 无价值的; 无用的 a dud cheque, ie one that is forged or not backed by cash 无用的支票（假支票或空头支票）. |
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