since的意思
prep. 自…以后,何曾
conj. 自从,因为,既然
adv. 后来
since的用法讲解
英语单词since是一个常用词，它可以有不同的用法。下面就来介绍一下since的用法。
一、since作“自从”讲
1. since+时间状语从句
例句：I haven't seen her since last week.
意思是：自从上周以来我没有见到她。
2. since+现在完成时
例句：He has gone to Beijing since last month.
意思是：自从上个月起，他就去了北京。
二、since作“因为；既然”讲
1. since+从句
例句：Since you said that,I stayed silent.
意思是：既然你说了那句话，我保持沉默。
2. since+陈述句
例句：Since she was late,we couldn't wait for her.
意思是：因为她迟到了，我们不能等她。
以上就是关于英语单词since的常见用法讲解，希望能够为你提供一些帮助。
since的例句
How long is it since we last went to the theatre?
我们多久没去看戏了？
牛津词典
He left home two weeks ago and we haven't heard from him since.
他两周前离家外出，我们至今还没有他的音信。
牛津词典
She had been worrying ever since the letter arrived.
自从接到那封信后她就一直焦虑不安。
牛津词典
‘They've split up. ’ ‘ Since when? ’
“他们分手了。”“什么时候的事儿？”
牛津词典
We were divorced two years ago and she has since remarried.
我们两年前离了婚，之后她又再婚了。
牛津词典
I haven't eaten since breakfast.
早饭以后我还没吃过东西呢。
牛津词典