(1)適用される際に、予想通りに実行する
(2)perform as expected when applied; "The washing machine won't go unless it's plugged in"; "Does this old car still run well?"; "This old radio doesn't work anymore"
さらに詳しく
(1)作用していない、あるいは発効していないさま
(2)not working or taking effect; "an inoperative law"
