音標發(fā)音英式音標 [?pri???p.?r.?.t?v]美式音標 [?pri??ɑ?p.?.?.t??v]英式發(fā)音 美式發(fā)音 基本解釋手術前的。同根派生 preoperative相關詞英英字典劍橋英英字典 relating to the period of time immediately before a medical operationpreoperative劍橋字典preoperative柯林斯字典