đồ bỏ đi
/dʌd//dʌd/The word "dud" originated in the late 19th century as slang in the field of explosives. In the booming arms and ammunition industry, manufacturers sometimes produced faulty or misfired shells, which were deemed useless for military purposes. These failed explosives came to be called "duds." The exact origin of the term "dud" is uncertain, but some believe it may have derived from the Old English word "dōd," meaning dead or lifeless. It's possible that the association between failed explosives and lifelessness led to the adoption of "dud" as a colloquial term for something that is not functioning properly. Over time, the meaning of "dud" has evolved beyond its original military context. Today, the term is used more broadly to refer to anything that falls short of expectations, such as a subpar performance, a disappointing product, or a person who fails to deliver on their promises. However, its roots in the explosives industry continue to be a part of its versatile usage in colloquial language.
a thing that has no use, especially because it does not work correctly
một thứ không có tác dụng, đặc biệt là vì nó không hoạt động đúng
Có hai quả pháo hoa trong hộp bị hỏng.
clothes
quần áo