since
prep. 自…以后; 何曾
conj. 自从; 因为; 既然
adv. 后来
You use since when you are mentioning a time or event in the past and indicating that a situation has continued from then until now.
Jacques Arnold has been a member of parliament since 1987...
雅克·阿诺德自 1987 年以来一直是议会议员。
She had a sort of breakdown some years ago, and since then she has been very shy...
几年前她得了神经衰弱,自那以后就变得十分腼腆。
You use since to mention a time or event in the past when you are describing an event or situation that has happened after that time.
The percentage increase in reported crime in England and Wales this year is the highest since the war...
今年英格兰和威尔士报道的犯罪增长率是战后以来最高的。
He turned out to have more battles with the Congress than any president since Andrew Johnson.
结果他是自安德鲁·约翰逊以来和国会斗争最多的一任总统。
When you are talking about an event or situation in the past, you use since to indicate that another event happened at some point later in time.
About six thousand people were arrested, several hundred of whom have since been released...
约 6,000 人被捕,后来其中的几百人又被释放了。
His style of leadership has attracted increasing criticism among his supporters, many of whom have since left Central Office.
他的领导风格已经在他的拥趸中引起了越来越多的批评,很多人后来离开了总局。
If you say that something has long since happened, you mean that it happened a long time ago.
Even though her parents have long since died, she still talks about them in the present tense.
尽管双亲早已离世,她谈论起他们时好像他们至今健在。
You use since to introduce reasons or explanations.
I'm forever on a diet, since I put on weight easily...
我永远都在减肥,因为我很容易长胖。
Since she did not make enough money to live in her own house, she went back to live with her mother.
她挣的钱不够自己一个人住,于是搬回去和她妈妈一起住了。
as, because, for, since
这些连词均含有"因为"之意。
Party membership has increased by more than 4 , 000, 000 since then.
从那时到现在,党员增加了400多万人.
His actions since that morning have been eccentric and unpredictable.
自从那天早晨,他的行动一直是反常而不可捉摸.
Since the new management system was put into effect, the production of this factory has increased tremendously.
自从实行新的管理制度以来,这个厂的生产有了很大发展.
She's been poorly off since her husband died.
她丈夫死后她一直是贫困的.
Many years have rolled by since I last sat talking to her.
自我上次跟她谈话一别,许多年过去了.