基本解释n.同栖者；同居者同根派生 英汉例句from my 17-year-old girlfriend and started to cohabitee, and now I am 23 years old, basically a one-time life every day, sometimes several times. 我从17岁开始和女朋友同居，到现在我23岁了，基本上每一天一次性生活，有时候是多次。