牡麗三郎的部落格

/ sɪns; sɪns/ prep (used with the present or past perfect tense 與現在完成時態或過去完成時態連用) from (a specified time in the past) till a later past time, or till now 從（過去某時間）以來﹑ 以後或到現在: I haven't eaten since breakfast. 我吃了早飯後到現在還什麼都沒吃呢. * She's been working in a bank since leaving school. 她中學畢業後就一直在一家銀行工作. * He had spoken to her only once since the party. 自從那次聚會以來, 他只跟她說過一次話.
> since conj
(used with the present perfect, past perfect or simple present tense in the main clause 與主句中的現在完成時態﹑ 過去完成時態或一般現在時態連用) from (a specified event in the past) till a later past event, or till now 從（過去某事）以來﹑ 以後或到現在: Where have you been since I last saw you? 自從我上次見到你以後, 你到哪兒去了? * It was the first time I'd won since I'd learnt to play chess. 自從我學會下國際象棋以來, 這是我第一次贏. * How long is it since we visited your mother? 自從我們看望你母親以來到現在有多長時間了?
because; as 因為; 既然; 由於: Since we've no money we can't buy a new car. 因為我們沒錢, 沒法買新汽車.
(idm 習語) ever since =>ever. since adv (used with the present or past perfect tense 與現在完成時態或過去完成時態連用) from a specified time in the past till a later past time, or till now 從過去某時間以來﹑ 以後或到現在: He left home two weeks ago and we haven't heard from him since. 他兩星期以前離開了家, 到現在我們一直沒有他的消息. * She moved to London last May and has since got a job on a newspaper. 她去年五月到倫敦, 此後一直在報社工作.

source:

牛津英漢字典