[ 'lɔ:ntʃiŋ, 'lɑ:ntʃiŋ ] 现在分词 BNC词频 18567 COCA词频 14214 n. 发射, 船下水, 下水典礼, 开办 n. the act of moving a newly built vessel into the water for the first time n. the act of propelling with force 原型: launch 现在分词: launching 英汉双解字典由 ECDICT 提供