buddy

buddy
(informal, chiefly N. Amer.)(非正式, 主 北美)
(pl. -ies)
  1. a close friend
    密友,好朋友
    ■a working companion with whom close cooperation is required
    亲密战友,搭档
    ■used as a form of address to a man whose name is not known
    [用于称呼不知道名字的人]兄弟;老兄
    I'm working on it, buddy.
    我正在干着呢,老兄。
    ■a person who befriends and helps another with an incapacitating disease, typically Aids
    (尤指帮助艾滋病人的)义工
(-ies, -ied)
  1. [no obj.]become friendly and spend time with
    与…成为朋友,与…结交
    I decided to buddy up to them.
    我决定和他们结交。
语源
  1. mid 19th cent. (originally US): perhaps an alteration of brother, or a variant of butty
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