sine /sain/ 📖 中文释义 n. 正弦[计] 正弦 🔗 释义中的汉语词 正弦 🧩 词形变化 复数 sines 📘 English Definition(英文释义) n. ratio of the length of the side opposite the given angle to the length of the hypotenuse of a right-angled triangle ← sindy S 字母词表 sine aldehydo alcohol →