As he said it, there was a hammering outside.他说这话时，外面传来一阵敲打声。My heart was hammering. The footsteps had stopped outside my door.我的心怦怦直跳。脚步声已停在我的门外。A crowd of reporters was hammering on the door.一群记者正在砰砰地拍打着大门。...
Objective To prepare safe and valid Group A Meningococcal polysaccharide conjugate vaccine.目的制备安全、效的A群 脑膜炎球菌多糖结合疫苗.Objective To prepare group A + C meningococcal polysaccharide conjugate vaccine.目的研制A+群脑膜炎球菌多糖-破伤风类毒素结合疫苗...
当然了，倘若价格合适，我们将采购你们的全部产品。We'll buy everything you produce, provided of course the price is right.街上挤满了为圣诞节采购的人。The streets were full of Christmas shoppers.自由采购商品.Goods are open to free purchase....
Recent medical studies confirm the efficacy of a healthier lifestyle.最新医学研究证实了较为健康的生活方式的好处。The treatment has no efficacy in that disease.这种疗法对那种疾病不管事.The most commonly cited reasons for stopping the treatment were lack o...