instrumental

adj

1. serving or acting as a means or aid

e.g. instrumental in solving the crime

Synonym: implementalsubservient

2. relating to or designed for or performed on musical instruments

e.g. instrumental compositions
an instrumental ensemble

1. 有助益的;有帮助的;起作用的
Someone or something that is instrumental in a process or event helps to make it happen.

e.g. In his first years as chairman he was instrumental in raising the company's wider profile...
他任董事长的最初几年为提升公司的知名度起到了积极的推动作用。
e.g. Jesse Jackson was instrumental in the release of some of the hostages.
其中一些人质得以获释多亏了杰西·杰克逊。

2. 用乐器演奏(而非声乐)的;为器乐谱写的
Instrumental music is performed by instruments and not by voices.

e.g. ...a cassette recording of vocal and instrumental music.
有声乐也有器乐的磁带录音

1. 器乐：从00时50分50秒到00时52分08秒, 当超人(Superman)在里查.怀特和露薏丝.莲恩家外面偷听两人的对话时,小孩杰森.怀特弹奏了弗兰克.罗瑟(Frank Loesser)和霍依基.卡迈克尔(Hoagy Carmichael)创作的<>(Heart & Soul)器乐(instrumental)版.

2. 有用的：我愿意I incline to; I am inclined to; I am willing to; I tend to | 有用的useful ; of use; serviceable; good for; instrumental; productive | 有意义的meaningful; fulfilling