bum around
collocation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。
讨要；蹭
先理解核心含义，再看它在真实句子里的用法。
讨要；蹭
to ask for and get something without paying; to sponge off someone
He bums around the city all day.
他整天在城市里游荡。
懒惰或闲散
be lazy or idle
乞讨并获得免费；做寄生虫
ask for and get free; be a parasite
bum
Base
原形
bums
3rd person
第三人称单数
bumming
-ing
现在分词
bummed
Past
过去式
bummed
Past participle
过去分词
He bums around town all day.
他整天在镇上闲逛。
They bummed a cigarette from me yesterday.
他们昨天向我要了一根烟。
She is bumming a ride to the station.
她正在搭便车去车站。
注意：bum作动词时，过去式和过去分词需双写m。
She bummed a cigarette from a stranger.
她向陌生人讨了一支烟。
They were bumming food from tourists.
他们向游客乞讨食物。
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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。
讨根烟抽
Hey, can I bum a cigarette?
嘿，能给我一根烟吗？
搭便车
Can I bum a ride to the station with you?
我能搭你的便车去车站吗？
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。
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。
闲逛；游手好闲
He spent the summer bumming around Europe.
他整个夏天都在欧洲闲逛。
使沮丧；使失望
It really bums me out that we can't go.
我们不能去，这真让我沮丧。
搭便车；蹭车
Can I bum a ride home with you?
我能搭你的便车回家吗？
Use bum naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
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。
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。
既可作及物动词（乞讨某物），也可作不及物动词（流浪、乞讨）。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.