since

From Longman Dictionary of Contemporary Englishsincesince /sɪns/ S1 W1 preposition, conjunction, adverb 1 SINCEfrom a particular time or event in the past until the present, or in that period of time We’ve been waiting here since two o’clock. I haven’t played rugby since I left university. She left London ten years ago, and I haven’t seen her since. The factory has been here since the 1970s. It was exactly five years since her father had died. Since the end of the war, over five thousand prisoners have been released. He lost his job five years ago, but has since found other work. I left school in 1995, and since then I’ve lived in London.ever since (=all the time since) We’ve been friends ever since we were at school together. She’s been terrified of the sound of aircraft ever since the crash. We came to the UK in 1974 and have lived here ever since. 2 BECAUSEused to give the reason for something Since you are unable to answer, perhaps we should ask someone else.► see thesaurus at because 3 → since when?4 → long sinceGRAMMAR: Comparisonsince• 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.• Don’t use since with a period of time. ✗Don’t say: 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.• 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.• You use the simple past tense after since: 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.Examples from the Corpussince• Sarah's been sick since Friday.• Unemployment is now at its lowest point since World War II.ever since• Federal authorities have tried to put together a criminal case against Zimmermann ever since.• Instantly we fell in love with the area and have been returning regularly ever since.• It has been on my conscience ever since.• Another interview revealed that ever since childhood she had been very suspicious of strangers.• He's had to be kept apart from the hamsters ever since one bit him on the nose.• Marsha says Michael has been difficult to control ever since she divorced his father in 1979.• She behaved in this way ever since the first attempt...Origin since Old English siththan, from sith tham “since that”

单词	since
释义	since From Longman Dictionary of Contemporary Englishsincesince /sɪns/ ●●● S1 W1 preposition, conjunction, adverb 1 SINCEfrom a particular time or event in the past until the present, or in that period of time We’ve been waiting here since two o’clock. I haven’t played rugby since I left university. She left London ten years ago, and I haven’t seen her since. The factory has been here since the 1970s. It was exactly five years since her father had died. Since the end of the war, over five thousand prisoners have been released. He lost his job five years ago, but has since found other work. I left school in 1995, and since then I’ve lived in London.ever since (=all the time since) We’ve been friends ever since we were at school together. She’s been terrified of the sound of aircraft ever since the crash. We came to the UK in 1974 and have lived here ever since. 2 BECAUSEused to give the reason for something Since you are unable to answer, perhaps we should ask someone else.► see thesaurus at because 3 → since when?4 → long sinceGRAMMAR: Comparisonsince• 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.• Don’t use since with a period of time. ✗Don’t say: 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.• 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.• You use the simple past tense after since: 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.Examples from the Corpussince• Sarah's been sick since Friday.• Unemployment is now at its lowest point since World War II.ever since• Federal authorities have tried to put together a criminal case against Zimmermann ever since.• Instantly we fell in love with the area and have been returning regularly ever since.• It has been on my conscience ever since.• Another interview revealed that ever since childhood she had been very suspicious of strangers.• He's had to be kept apart from the hamsters ever since one bit him on the nose.• Marsha says Michael has been difficult to control ever since she divorced his father in 1979.• She behaved in this way ever since the first attempt...Origin since Old English siththan, from sith tham “since that”
随便看	carbon paper carbon sink carbon tax carbon-based etc carbonate carbonated carbonbased etc carbone carboniferous carbonize carboy carbuncle carbunculus carburettor carcass carcer carcinogen carcinogenic carcinoma carcois carcrash TV card card carrying card carrying member card catalog