ADJ-GRADED
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.
例句
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。
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。