Word · Frequency #9048
bum
讨要；蹭
to ask for and get something without paying; to sponge off someone
- 1.
be lazy or idle
懒惰或闲散
- 2.
ask for and get free; be a parasite
乞讨并获得免费；做寄生虫
闲荡；无所事事；懒惰或闲散；乞讨并获得免费；做寄生虫；过游民生活；乞讨
In use
He bums around the city all day.
She bummed a cigarette from a stranger.
They were bumming food from tourists.
Verb forms
base bum · third person bums · -ing bumming · past bummed · past participle bummed
注意：bum作动词时，过去式和过去分词需双写m。
Connections
Collocations
- bum around
- 闲荡；无所事事
- They spent the afternoon bumming around the old town.他们一下午都在老城区闲逛。
- bum a cigarette
- 讨根烟抽
- Hey, can I bum a cigarette?嘿，能给我一根烟吗？
- bum a ride
- 搭便车
- Can I bum a ride to the station with you?我能搭你的便车去车站吗？
- bum money off
- 向……要钱；蹭钱
- He always bums money off his friends instead of getting a job.他总向朋友要钱，而不是去找份工作。
- bum off
- 靠……养活；吃白食
- He has been bumming off his parents for years.他多年来一直靠父母养活。
Idioms & figurative uses
Learner notes
Memory Tip
想象一个流浪汉(bum)整天bum around闲荡，向人讨要或蹭免费的东西——bum的动词义就是懒散闲逛、讨要白拿。
Context & Register
语域：informal 常见场景：casual conversation with friends、informal requests for small favors bum 作动词时多用于非正式口语，表示“讨要、蹭”或“闲荡、无所事事”。正式场合通常不用，可换成 ask for、borrow 或 idle 等更正式的说法。
Grammar Note
既可作及物动词（乞讨某物），也可作不及物动词（流浪、乞讨）。
Pronunciation & Spelling
这些词都以 /ʌm/ 音结尾，与 bum（/bʌm/）押韵。注意拼写相近的 bomb（/bɒm/ 或 /bɑːm/）读音不同，不要混淆。
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.