instrumental /ˌɪnstrəˈmɛntl̟/ adjective /ˌɪnstrəˈmɛntl̟/
adjective
Learner's definition of INSTRUMENTAL
1
[more instrumental; most instrumental] : very important in helping or causing something to happen or be done起重要作用的；有很大帮助的 —
often + in -
He was instrumental in organizing the club. = He played an instrumental part/role in organizing the club.俱乐部得以组建多亏了他。
-
Her influence was instrumental in bringing the painting to the museum.这幅藏画得以移交博物馆，她的影响力发挥了巨大作用。
2
music : written for or performed on musical instruments : not including singing为器乐谱写的；用乐器演奏的 — instrumentally
/ˌɪnstrəˈmɛntl̟i/ adverb