prevail vi. 1.胜,压倒,占优势;占上风,胜过 (over; against); 成功,奏效。 2.普遍;传开,盛行,流行,普及。 3.说服,劝说 (on; upon; with)。 This custom does not prevail now. 这种风俗现在已经不流行了。 Can't I prevail upon you to have another helping of pie 你再吃一块馅饼好吗? I cannot prevail upon him. 我说服不了他。 prevail over [against] the enemy 战胜敌人。