It can be challenging to recognize the damage caused by a toxic friendship, especially if you've known and cared about the person for a long time. But if you've resolved to be happier and healthier in the new year, taking stock of your relationships is a good place to start. 

认清有毒朋友的危害非常难办到，特别是如果你已经认识他/她很久，关系也不错的时候。但如果你下决心想在新的一年中更快乐、更健康，清理一下你的朋友关系是个不错的开始。

In fact, 84 percent of women -- and 75 percent of men -- said they'd had a toxic friend at some point, with 1 in 3 survey takers fessing up to a toxic BFF. 

事实上，84%的女性和75%的男性表示自己曾经有过有毒朋友，三分之一的受访者坦承曾经有过关系非常好的有毒朋友。