改作

(1)the process of adapting to something (such as environmental conditions)

(2)何かに適応する作用（周囲の状況などに）

(3)a written work (as a novel) that has been recast in a new form; "the play is an adaptation of a short novel"

(4)新しい形で作り直された（小説のような）著作物

(1)