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...
The chromium improved the growth performance and carcass characteristics in broilers.补铬改善了肉仔鸡的生长性能与胴体品质.The damaged wings in broilers processing showed as wing broken, extravasated blood , wing worn, wing dislocated.肉鸡加工...
The school has been in continual use since 1883.自1883年以来，该校从未停办过。They felt continual pressure to perform well.他们不断感受到压力，促使他们好好表演。She finds the continual confrontation very wearing.她发现持续的对峙让人精疲力竭。...