定: galipidine在: exist; be living某时: sometime; somewhen进行: be in progress; be underway; ...定在某时: be schedule for每次, 在某时: at a time在某时候: sometimes ad就在某时或某场合: time at or immediately after the time or occasion of于某时;在某一时间: sometime某时: sometime; somewhen 新学员将于下周某时来校。 new students will come to our school sometime next week定在: pitch at . . . level〔美国〕自修室;指定在自修室进行的课时。: study hall在某: in away固定在: fix to一定在……: must/might be doing从某时持续到某时: last from从某时刚: date from贯穿某时间: throughout the specified time火车在(某时)离站: 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..某时某地: somewhere out there四月的某时: sometimes in april在(某时)到达: the train is due at定在……的水平;定在……的级别: pitch at . . . level进行: 1.(开展) be in progress; be underway; go on 进行调查 make an investigation; 进行辩论 enter into a debate; 进行表决 put a question to the vote; 进行投机倒把 engage in speculation and profiteering; 进行报复 make reprisals; 进行正面教育 educate by using positive examples; 会议的准备工作正在进行。 preparations for the meeting are in progress.2.(从事) carry on; carry out; conduct; make 进行核试验 conduct a nuclear test; 进行坚决斗争 wage a resolute struggle; 进行攻讦 rack up sb.'s past and attack him; expose sb.'s past misdeeds3.(前进) be on the march; march; advance; proceed定在……的级别: pitch at . . . level