勉強

(1)a composition intended to develop one aspect of the performer's technique; "a study in spiccato bowing"

(2)演奏者のあるテクニックを伸ばすための練習曲

(3)applying the mind to learning and understanding a subject (especially by reading); "mastering a second language requires a lot of work"; "no schools offer graduate study in interior design"

(4)ある問題を（特に読書によって）学び理解するために頭を使うこと

(1)