事前in advance; beforehand; prior ~策劃的暗殺a premeditated murder/~磋商prior (or preliminary) consultations/~防范take precautions/~警告forewarn/~聯(lián)系get in touch in advance/~請示ask for instructions beforehand /~通知notify in advance;give prior (or advance)notice/~醞釀prior deliberation; exchange of views in advance |