since

出处：按学科分类—文体、科学、教育 外文出版社《小学生英汉汉英词典彩色版》第396页（218字）

[sns]〈连接词〉，〈介词〉自从；从…以来；…以后

I haven’t seen Mr．Wang since last week．从上周以来我就没有见过王先生。

We have lost sight of him since he went abroad．在他出国以后，我们就失去了联系。