The time would seem to be opportune to negotiate a halt to the arms race.看来这是通过谈判停止军备竞赛的大好时机。He must realize that an outstanding opportunity has been lost.他必定意识到错过了一次大好时机。Kaldor judged that the moment was exactly right to call an election.卡尔多断定此时正是举行选举的大好时机。