股沟的：“not to trust someone who’s ways of doing things have been i

it used in the context of “black hat” and “white hat” business practices, such as SEO website boosting techniques. Black hat may not be criminal, but it is definitely a violation of regulations. If you’re caught, your site may be blacklisted or banned (not just given a ranking penalty. Grey hat is borderline - risky tactics that may get banned. White hat is keeping your nose clean, obeying the rules.

In this context, “Once you go black, you never go back,” means not to trust someone who’s ways of doing things have been illicit - that there is no such thing as a reformed bad guy. (I don’t believe that, by the way.)

所有跟帖： 

• 这种东西不需要Google，生活在这个环境里自然知道这个话什么意思 -春闺是gay- ♀ (0 bytes) () 12/16/2017 postreply 13:57:40

• 楼主是个理科男，理论经验丰富，实战经验缺乏 -中坛太抖- ♂ (238 bytes) () 12/16/2017 postreply 13:59:26

• 哈哈， 我刚问了孩子，他说愿意是一旦犯了罪， 就永远是罪犯。但是现在有了种族的意思。 -gegenion- ♂ (407 bytes) () 12/16/2017 postreply 14:05:46

• 哈哈，你还真认死理。这种话怎么可以去问孩子。明摆着你要把娃带沟里 -中坛太抖- ♂ (259 bytes) () 12/16/2017 postreply 14:12:42