自从用英语表示为“since”；读音为英 [sɪns]，美[sɪns]。
since解析如下：
一、单词读音：
英式发音：[sɪns]
美式发音：[sɪns]
二、单词释义：
conj. 因为；既然；自从
prep. 自从
adv. 此后
三、近义词：
later 后来
since 因为
while 当 ... 的时候...
四、词语搭配：
since then 自那以后
ever since 从那时起
long since 很久以前
五、用法：
since引导时间状语从句时,若主句表示目前的状况是由于过去某一件事所造成的后果或影响时,其谓语动词也可以用一般现在时; 有时候,通过上下文,可以看出从句的动作是延续到过去某个时间,这时主句的谓语动词要用过去完成时; 如果主句的动作是从过去某时一直延续到现在,主句可用现在完成进行时。
since用作介词的意思是“从…以来,自从…之后”,其宾语常指过去的一个时间点,其含意通常指持续到说话时刻的动作或情况开始于什么时候。
since之后常接名词、动名词作其宾语, since then意为“从那以后”。
六、双语例句：
He had seen her only once since the meeting.
自从那次会议以来,他只见过她一次。
It is three years since I have seen him.
我已经三年没见到他了。
It was four months since we had been here.
我们已经有四个月没来这了。
He disappeared many years since.
他多年以前就不知去向。
He had spoken to her only once since the party.
自从那次聚会以来,他只跟她说过一次话。
“自从”用英语表达说法是since，解析如下：
1、音标： 英 [sɪns] 美 [sɪns]
2、意思：
conj. 因为；既然；自从
prep. 自从
adv. 此后
3、词语搭配：
ever since 从那时起,一直到现在
long since 好久以前,早已
not long since 就在不久
since then 其后,从此一直
4、用法：
prep. (介词)
since用作介词的意思是“从…以来,自从…之后”,其宾语常指过去的一个时间点,其含意通常指持续到说话时刻的动作或情况开始于什么时候。
since之后常接名词、动名词作其宾语, since then意为“从那以后”。
adv. (副词)
since用作副词表示“以前”时还可和long, ever连用。long since意为“好久以前”, not long since意为“就在不久前”, ever since意为“从那时起,此后一直”。
5、例句：
I have lived here since January.
自一月份以来,我一直住在这里。
He had seen her only once since the meeting.
自从那次会议以来,他只见过她一次。
He's been working in a bank since leaving school.
自从毕业后,他就一直在一家银行工作。
I have not seen him since then.
从那以后我再也没见过他。
Since I left college,I have not seen him.
自从我从大学毕业以后,就没有见过他了。
They have never been to see me since I was ill.
自从我生病之后,他们一直没来看过我。
Since I have owned a bicycle,I have gone to school by it every day.
自从我有了一辆自行车后,我每天骑车上学。