He was determined to track down the cause of food spoilage.他决心查出食品腐烂的原因.Car manufacturers stamp a vehicle identification number at several places on new cars to help track down stolen vehicles.汽车制造商在新车的好几处地方打上车辆识别号码，以便于追...
A Delta II rocket was launched from Cape Canaveral early this morning.今天一早，一枚“德尔塔”Ⅱ型火箭在卡纳维拉尔角发射升空。He was appointed Apostolic Administrator of Minsk by Pope John Paul II.他被教皇约翰·保罗二世任命为明斯克区的宗座署理。You can import files from M...