Sit, good dog, stay, bad dog, down, roll over.

坐下，乖狗，停下，坏家伙，下来，滚圈。

youdao

I was what some people would call "a5 dog" -a bad dog.

过去，我是一些人口中所谓的“坏蛋”——坏家伙。

youdao

The Man: You were out mugging trick-or-treaters weren't you? Bad dog!

男人说：你在外面抢劫那些“不给糖就捣蛋“的人了，是吧？ 你这只坏狗狗。

youdao

So, the claim about a phobia is that there's a bad association between, say dog and fear, or between airplanes or snakes and some bad response.

比如说，恐惧症就是在狗和恐惧之间,或是在飞机，蛇和一些糟糕反应之间，存在着消极的联结。

耶鲁公开课 - 心理学导论课程节选

Traffic is like a bad dog.

FORBES: Magazine Article

This attractive, easily navigable site, by one of New York's largest dog training organizations, is loaded with interesting, witty and conversational pieces to aid you in reforming your dog's bad habits.

CNN: Site-Seer: Fetching an obedient dog from the Web

Unlike The Doors and the Rolling Stones, who had bad-boy images, Three Dog Night was perceived as All-American boys.

NPR: 'The Harder They Fall': Fame and Addiction