"Since"通常用于表示从过去某个时间点开始一直延续到现在的时间段。

它后面的动作或状态通常使用完成时态,表示动作或状态已经开始并一直持续到现在。例如:- I have been living in this city since 2010. (我从2010年开始就一直住在这个城市。)- They have been married since last year. (他们从去年开始就结婚了。)- She has been working in the company since graduation. (她从毕业后开始就一直在这家公司工作。)需要注意的是,如果句子中有明确的过去时间点或时间段,可以使用过去时或过去完成时来表示。例如:- I lived in that house from 2010 to 201

5. (我从2010年到2015年住在那栋房子里。)- They had been married for 10 years before they got divorced. (他们离婚前已经结婚10年了。)