例1：We thought that,
since
we were in the area, we'd stop by and see them.
（我们想，
既然
到了这个地⽅，就该顺便去看看他们。）
例2：
Since
we've got a few minutes to wait for the train, let's have a cup of coffee.
（
既然
等⽕⻋还需要⼏分钟，我们去喝杯咖啡吧。）