composition
noun uk/ˌkɒm.pəˈzɪʃ.ən/ us/ˌkɑːm.pəˈzɪʃ.ən/
(MUSIC/ART)
B2 [ C ]（音乐）作品，乐曲
a piece of music that someone has written
This concerto is one of her earlier/later compositions. 这首协奏曲是她早期／后期的作品之一。
C2 [ U ]音乐创作（技巧），作曲（技巧）
the process or skill of writing music
At music school I studied piano and composition. 我在音乐学校学习钢琴和作曲。
C2 [ C ]（绘画或照片的）构图，构思，布局
the way that people or things are arranged in a painting or photograph
a group composition 组合构思
(PIECE OF WRITING)
B1 [ C or U ] old-fashioned作文
a short piece of writing about a particular subject, done by a student
a 200-word composition 一篇200字的作文
(FORMED FROM)
C2 [ U ]成分;构成;结构
the parts, substances, etc. that something is made of
the composition of the atmosphere 大气的构成