semicircle /'semi.sә:kl/ 高考英语词汇 📖 中文释义 n. 半圆形 🧩 词形变化 复数 semicircles 🔵 同义词hemicycle 📘 English Definition(英文释义) n. a plane figure with the shape of half a circle ← semichorus S 字母词表 semicircled →