since 的英语意思
sincesince /sɪns/ preposition, conjunction, adverb 
查看全部语言翻译1from a particular time or event in the past until the present, or in that period of time从过去某一时间或事件起直至现在，或在这段时间内: 
We’ve been waiting here since two o’clock.我们从两点钟起就一直在这里等。 I haven’t played rugby since I left university.自从我离开大学后，就再没打过橄榄球。 She left London ten years ago, and I haven’t seen her since.她十年前离开了伦敦，从那以后我就再没见过她。 The factory has been here since the 1970s.这家工厂从20世纪70年代起就在这里了。 It was exactly five years since her father had died.距她父亲去世整整五年了。 Since the end of the war, over five thousand prisoners have been released.自战争结束以来，已有五千余名囚犯获释。 He lost his job five years ago, but has since found other work.他五年前失业，但此后已找到了其他工作。 I left school in 1995, and since then I’ve lived in London.我1995年离开学校，此后便一直住在伦敦。ever since (=all the time since)（=从那以后一直如此） We’ve been friends ever since we were at school together.自从我们一起上学起，便一直是朋友。 She’s been terrified of the sound of aircraft ever since the crash.自从那次坠机事故以来，她一直对飞机的声音感到恐惧。 We came to the UK in 1974 and have lived here ever since.我们1974年来到英国，此后便一直住在这里。2used to give the reason for something用于说明某事的原因: Since you are unable to answer, perhaps we should ask someone else.既然你无法回答，或许我们应该问问别人。► see thesaurus at because3since when? spoken口语 used in questions to show that you are very surprised or angry用于疑问句，表示非常惊讶或愤怒: Since when have you been interested in my feelings?你什么时候开始对我的感受感兴趣了？4long since if something has long since happened, it happened a long time ago若某事 long since 发生，则表示该事发生于很久以前: I’ve long since forgiven her for what she did.对于她所做的一切，我早已原谅了她。GRAMMAR: Comparison语法：比较since• You use since with a time, year, date, or other point in time: · He has been living in England since 2008.· We’ve known about it since May.• since 用于表示具体时刻、年份、日期或其他时间节点：· He has been living in England since 2008.· We've known about it since May.• Don’t use since with a period of time. ✗Don’t say: He has been living in England since 12 years.• 不要将 since 与一段时间连用。✗不要说：He has been living in England since 12 years.• You use the present perfect before since: · I have liked him since we first met.· We’ve been driving since six this morning. ✗Don’t say: I like him since we first met.• since 前使用现在完成时：· I have liked him since we first met.· We've been driving since six this morning. ✗不要说：I like him since we first met.• You also use the past perfect before since: · She had been waiting since five o’clock. ✗Don’t say: She was waiting since five o’clock.• since 前也可使用过去完成时：· She had been waiting since five o'clock. ✗不要说：She was waiting since five o'clock.• You use the simple past tense after since: · He has grown since I last saw him.• since 之后使用一般过去时：· He has grown since I last saw him.for• You use for with a period of time: · I’ve known him for ten years.· We’ve been waiting for hours.• for 用于表示一段时间：· I've known him for ten years.· We've been waiting for hours.
查看全部语言翻译1from a particular time or event in the past until the present, or in that period of time从过去某一时间或事件起直至现在，或在这段时间内: We’ve been waiting here since two o’clock.我们从两点钟起就一直在这里等。 I haven’t played rugby since I left university.自从我离开大学后，就再没打过橄榄球。 She left London ten years ago, and I haven’t seen her since.她十年前离开了伦敦，从那以后我就再没见过她。 The factory has been here since the 1970s.这家工厂从20世纪70年代起就在这里了。 It was exactly five years since her father had died.距她父亲去世整整五年了。 Since the end of the war, over five thousand prisoners have been released.自战争结束以来，已有五千余名囚犯获释。 He lost his job five years ago, but has since found other work.他五年前失业，但此后已找到了其他工作。 I left school in 1995, and since then I’ve lived in London.我1995年离开学校，此后便一直住在伦敦。ever since (=all the time since)（=从那以后一直如此） We’ve been friends ever since we were at school together.自从我们一起上学起，便一直是朋友。 She’s been terrified of the sound of aircraft ever since the crash.自从那次坠机事故以来，她一直对飞机的声音感到恐惧。 We came to the UK in 1974 and have lived here ever since.我们1974年来到英国，此后便一直住在这里。2used to give the reason for something用于说明某事的原因: Since you are unable to answer, perhaps we should ask someone else.既然你无法回答，或许我们应该问问别人。► see thesaurus at because3since when? spoken口语 used in questions to show that you are very surprised or angry用于疑问句，表示非常惊讶或愤怒: Since when have you been interested in my feelings?你什么时候开始对我的感受感兴趣了？4long since if something has long since happened, it happened a long time ago若某事 long since 发生，则表示该事发生于很久以前: I’ve long since forgiven her for what she did.对于她所做的一切，我早已原谅了她。GRAMMAR: Comparison语法：比较since• You use since with a time, year, date, or other point in time: · He has been living in England since 2008.· We’ve known about it since May.• since 用于表示具体时刻、年份、日期或其他时间节点：· He has been living in England since 2008.· We've known about it since May.• Don’t use since with a period of time. ✗Don’t say: He has been living in England since 12 years.• 不要将 since 与一段时间连用。✗不要说：He has been living in England since 12 years.• You use the present perfect before since: · I have liked him since we first met.· We’ve been driving since six this morning. ✗Don’t say: I like him since we first met.• since 前使用现在完成时：· I have liked him since we first met.· We've been driving since six this morning. ✗不要说：I like him since we first met.• You also use the past perfect before since: · She had been waiting since five o’clock. ✗Don’t say: She was waiting since five o’clock.• since 前也可使用过去完成时：· She had been waiting since five o'clock. ✗不要说：She was waiting since five o'clock.• You use the simple past tense after since: · He has grown since I last saw him.• since 之后使用一般过去时：· He has grown since I last saw him.for• You use for with a period of time: · I’ve known him for ten years.· We’ve been waiting for hours.• for 用于表示一段时间：· I've known him for ten years.· We've been waiting for hours.