对...有经验; 对...很内行

    Beware of a silent dog and still water.

    [谚]提防不吠的狗, 小心 静止的水。

    come like a dog at a whistle

    一呼即来

    Every dog has his day.

    [谚]凡人皆有得意日。

    Every dog is a lion at home. [Every dog is valiant at his own door.]

    [谚]狗是百步王, 只在门前凶。

    Fight dog, fight bear.

    [谚]打个青红皂白, 一决雌雄。

    Give a dog a bad [an ill] name(and hang him).

    [谚]一旦给人加一个坏名声, 他就永远洗刷不掉; 人言可畏。

    It is ill to waken sleeping dogs. [let sleeping dogs lie; don't wake a sleeping dog.]

    别多事, 别惹麻烦。

    lead a dog's life

    过着牛马不如的生活

    love me, love my dog.

    [谚]你若把我当朋友, 也要把我的朋友当朋友; 爱屋及乌。

    Scornful[Hungry] dogs will eat dirty puddings.

    [谚]人到危急时, 平时所不屑做的也要做; 急不暇择, 饥不择食。

    teach an old dog new tricks

    使守旧的人接受新事物

    teach the dog to bark

    教狗怎么叫(意指多此一举)

    The dog returns to his vomit.

    狗回头吃自己吐出来的东西; 重犯旧日罪恶。

    A living dog is better than a dead lion.

    一条活狗胜过一头死狮.

    The cat and dog may kiss, yet are none the better friends.

    猫狗可以相吻，但不会成为好友。

    Dumb dogs are dangerous.
    
    不叫的狗咬人

    Give a dog a bad name and hang him.

    谗言可畏，欲加之罪，何患无辞

 

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