龙井12345
since[英][sɪns] [美][sɪns] 生词本简明释义prep.从…以来；自从…之后；自从adv.以后，此后；后来；（距今几年）以前；（从那时候起几年）以前conj.自从…以来；自从…的时候起；既然；因为以下结果由 金山词霸 提供柯林斯高阶英汉词典 百科释义 同反义词1.PREP（表示某情况自过去某时间点或某个事件以来一直持续到现在）自…以后，从…以来You use since when you are mentioning a time or event in the past and indicating that a situation has continued from then until now.
