二三 èrsān two or three Origin Definitions Defs Strokes Stroke Words Sentences Sents 2 sentences 我记得房间里有二三十个人。 wǒ jì de fángjiān li yǒu èr sānshí ge rén. I remember there were twenty or thirty people in the room. Source: CCMatrix一二三，敲敲墙！ yī èr sān, qiāo qiāo qiáng! One, two, three, knock on the wall! Source: AI Challenger 2017