1 [U] the parts that form sth; the way in which the parts of sth are arranged 组成部份;构造:
the chemical composition of a substance某种物质的化学成分the composition of the population人口结构
2 [C] a piece of music that has been written by sb 音乐作品:
Chopin's best-known compositions肖邦最著名的作品
3 [U] the act or skill of writing a piece of music or text 作曲;撰文;作曲或撰文的技巧:
She studied both musical theory and composition.她修读了音乐理论及作曲技巧。
4 [C] a short piece of writing done at school, in an exam, etc 作文:
Write a composition of about 300 words on one of the following subjects.试选以下其中一个题目写一篇约300字的文章。