[ lɒ:ntʃ ] 牛津3000核心词汇 柯林斯星级 ★★★★☆ BNC词频 1427 COCA词频 1743 n. 下水, 汽艇, 发射 vt. 使下水, 发射, 发动 vi. 起飞, 下水, 投入, 开始 n. a motorboat with an open deck or a half deck v. propel with force v. launch for the first time; launch on a maiden voyage v. get going; give impetus to 过去分词: launched 过去式: launched 现在分词: launching 第三人称单数: launches 复数: launches 英汉双解字典由 ECDICT 提供