COMB in N-COUNT
（与 two, three 等词连用构成名词，表示参加某项活动的人数，尤指戏剧或电影中的角色人数）表示“…人”
-hander combines with words like 'two' or 'three' to form nouns which indicate how many people are involved in a particular activity, especially a play or a film.
例句
...a two-hander play...
双人剧
Williams's play is a tense contemporary three-hander about two murderers and a bank-robber.
威廉斯的这部戏剧是一部关于两个凶手和一个银行抢劫犯的扣人心弦的现代三人剧。