threesome /'θri:sәm/ 📖 中文释义 n. 三人一组, 三人的竞赛 🧩 词形变化 复数 threesomes 📘 English Definition(英文释义) n the cardinal number that is the sum of one and one and onen three people considered as a unit ← threescore T 字母词表 threesomes →