room-mate

基本解释

We perceived the figure to be your room- mate.
我们察觉那个人就是你的室友。
dict.cn
Kevin was "Zuck's" room-mate in the bungalow in Palo Alto; he's 29 and a billionaire (on paper).
Kevin和Zuck是室友，他们曾经共同居住在帕洛阿尔托的一间小平房里；他现在29岁，是个亿万富翁（理论上是）。
Equipped with detailed time-use questionnaires, they looked at students who were randomly assigned a room-mate with a games console.
他们给一些学生随机分配了一位拥有游戏机的室友，然后借助详细的时间使用问卷，对这些学生进行了考查。
ych8671.blog.163.com

She was further encouraged when her room-mate married an online match.
ECONOMIST: Professional heartache
In high school, Maples started writing video games for PCs and then went to Stanford where his room-mate was Joe Liemandt, who founded client-server software maker, Trilogy Software, in Austin.
FORBES: How Mike Maples, Jr. Became One Of Silicon Valley's Great Investors
In the early 1950s young Mr Andre went off to Phillips Academy in Andover, and then on to New York City where he shared a tiny, cold-water apartment in Little Italy with his old college room-mate, Hollis Frampton, a photographer.
ECONOMIST: American sculptors: The heart of the matter

Your roommate is the person you share a room, apartment, or house with, for example when you are in college.