No, 206

= No sooner ~ than = As soon as = Scarcely/Hardly~ when(before) = The moment/Immediately/Directly/The instance(->접속사) =On ~ ing ex) No sooner had he left home than he began to run for school. 그는 집에서 나오자 마자 학교를 향해 뛰기 시작했다.