释义 |
in.stru.men.talH.In7strE5men7t[l, $-t[ladj [after v] fmlIf someone or something is instrumental in a process, plan or system, they are one of the most important influences in causing it to happen.起作用的,有帮助的She was instrumental in bringing about the prison reform act.监狱改革条例得以产生多亏她从中斡旋。
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