cigarette butt
noun [ C ] uk/sɪɡ.əˈret ˌend/ us/ˈsɪɡ.ə.ret ˌend/ (UK also cigarette end)
烟蒂，烟头
the part of a cigarette that is left after it has been smoked
The floor was littered with cigarette butts. 满地都是烟头。
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