heptachord /'heptәkɒ:d/ 📖 中文释义 n. 七弦琴, 七声音阶 🔗 释义中的汉语词 七弦琴 📘 English Definition(英文释义) n. A system of seven sounds.n. A lyre with seven chords.n. A composition sung to the sound of seven chords ortones. ← heptachloropropane H 字母词表 heptachromic →