room-mate

基本解释

We perceived the figure to be your room- mate.
我們察覺那個人就是你的室友。
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，他們曾經共同居住在帕洛阿爾托的一間小平房裡；他現在29嵗，是個億萬富翁（理論上是）。
Equipped with detailed time-use questionnaires, they looked at students who were randomly assigned a room-mate with a games console.
他們給一些學生隨機分配了一位擁有遊戯機的室友，然後借助詳細的時間使用問卷，對這些學生進行了考查。
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.