定: galipidine在: exist; be living某時: sometime; somewhen定在某時(進行): be schedule for每次, 在某時: at a time在某時候: sometimes ad就在某時或某場合: time at or immediately after the time or occasion of于某時；在某一時間: sometime某時: sometime; somewhen 新學(xué)員將于下周某時來校。 new students will come to our school sometime next week定在: pitch at . . . level在某: in away固定在: fix to一定在……: must/might be doing從某時持續(xù)到某時: last from從某時剛: date from貫穿某時間: throughout the specified time火車在（某時）離站: the t aqyh rain lzves the station at..., the train is due out at..; the train leaves the station at..., the train is due out at..某時某地: somewhere out there四月的某時: sometimes in april在(某時)到達(dá): the train is due at定在……的水平；定在……的級別: pitch at . . . level定在……的級別: pitch at . . . level定在……的水平: pitch at . . . level表示某時刻，選用: at從某時剛開始: date from
