在制造疫苗时, 病毒要无害化,但不应破坏其免疫学特性.In making a vaccine, the virus is rendered harmless without destroying its immunologic properties.实现无害化生产的关键环节在于规范企业行为.The key to innocuous production is to normalize the enterprise operations....
He sat penitently in his chair by the window.他懊悔地坐在靠窗的椅子上。She had been sitting with her knitting at her fourth-floor window.她那时正坐在5楼的窗前织东西。She stared dreamily out of the small window at the blue horizon.她出神地看着小窗子外面的蓝色地平线...