since是什么意思？

since

英[sɪns] 美[sɪns]

• prep. 从…以来，自从…之后，自从；
• adv. 以后，此后，后来，（距今几年）以前，（从那时候起几年）以前；
• conj. 自从…以来，自从…的时候起，既然，因为；

例句

• He has kept up with a number of his old workmates since his retirement. 他退休以后一直和许多老同事保持着联系。
• It's a long time since she ate out last time. 她很长一段时间没在外面吃饭了。
• Plans for the picnic are still up in the air since we can't decide where to go. 由于我们不能决定去哪儿, 野餐计划还未定。
• Another hundred thousand copies of the novel have been struck off since last year. 自从去年以来, 那部小说又印了十万册。
• Since he broke his leg, he can't get about. 他的腿坏了, 所以不能到处走动。
• Ever since then I've been longing to meet him face to face. 从那时起, 我一直渴望和他面对面地聚会。
• It's not easy for him to dry out since he has a lot of drug-addict friends. 他的毒瘾不易戒掉, 因为他有很多朋友都是有毒瘾的人。
• Events since the elections have proved the skeptics right. 选举后的一系列事件证明怀疑派是正确的。
• He's let himself go since Cage died. 自从凯奇死后, 他变得不修边幅了。
• That boy has shot up since we last saw him. 自上次见面后, 那男孩长得很快。

同义词解析

• 以下这些连词均含有"因为" 的意思
  as ：从属连词，语意较because, since弱，着重在主句，所表示的原因或理由是"附带的"。
  because ：从属连词，语意强，着重直接的原因或理由，所引出的从句是全句的重心，用以回答why提出的问题。
  for ：并列连词，语气较弱，所引出的句子一般放在后面，表示附带说明的理由或推断理由。
  since ：语意比because弱，但比as强，一般用于表示"由于大家已知的事实"。

柯林斯高阶英汉双解学习词典释义

• PREP
  (表示某情况自过去某时间点或某个事件以来一直持续到现在)自…以后，从…以来
  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.
  例句
  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。
• PREP
  (表示某事件或情况从过去某时间或某个事件之后一直发生)自…以来,在…之后
  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.
  例句
  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。
• ADV
  (表示过去某事或某情况发生后不久又发生了另一件事)此后，后来
  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.
  例句
  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。
• PHRASE
  早就
  If you say that something has long since happened, you mean that it happened a long time ago.
  例句
  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。
• CONJ-SUBORD
  因为;由于;既然
  You use since to introduce reasons or explanations.
  例句
  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。

英汉词典释义

• prep.
  (表示时间)从…以来; 自从…之后
  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。
• adv.
  从过去某时间以来[以后, 到现在]
  He disappeared many years since. 他多年以前就不知去向。 Her husband died 10 years ago but she has since remarried. 她丈夫于十年前去世, 但她后来又嫁人了。 I've long since forgotten what our quarrel was about. 我早就忘掉我们为什么吵架了。 It was not long since that I returned. 我是在不久前回来的。 He came to London 3 years ago and has lived here ever since. 他三年前来到伦敦, 此后就一直住在这里。
• conj.
  自从(过去某事)以来[以后, 到现在]
  Since I left college, I have not seen him. 自从我离开大学以后, 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。 I have known him ever since I was a child. 我自孩提时代起就已经认识他了。 It is ten years since she left me. 自从她离开我已经十年了。 It is five years since he left here. 他离开这儿已有五年了。 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。 His health is much improved since he gave up smoking. 他自戒烟以来, 健康状况大大改善了。 I met him last week.Since we left school, we had often written to each other. 上周我遇见了他。自从我们离开学校后, 我们曾经常互相写信。 The man has been drinking beer ever since the party started. 晚会开始以来, 那个男人就一个劲儿地喝啤酒。 She has been collecting stamps since she was a child. 她从小起就一直在集邮。
  因为; 既然; 由于
  Since it is late I shall go home now. 由于时间晚了, 我现在要回家了。 Since you are so sure of it he'll believe you. 既然你对此这么有把握, 他会相信你的。