/su:n ||; sun/adv1 in a short time from now; a short time after sth else has happened 不久: It will soon be dark. 不久便会天黑。He left soon after me. 我走后不久他也走了。We should arrive at your house soon after twelve. 十二点过后不久我们便可到达你的住所。 (spoken 口语) See you soon. 回头见。
2 early; quickly 早；快: Don't leave so soon. Stay for tea. 别这么快就走。留下来喝茶吧。How soon can you get here? 你最快要多久才能到这里？
as soon as at the moment (that); when 一…就…:
Phone me as soon as you hear some news. 你一听到什么消息就立即打电话给我。I'd like your reply as soon as possible (= at the earliest possible moment). 我希望你尽快答复。 no sooner...than(
written 书面语) immediately when or after 一…就…:
No sooner had I shut the door than I realized I'd left my keys inside. 我一关上门就发现我把钥匙留在屋里了。 E4@@The word order is important here. The verb follows immediately after ‘No sooner’, and the subject comes after that. 这句的词序重要。动词紧随no sooner之后，然后才是主语。
sooner or later at some time in the future; one day 迟早；总有一天