Later in the evening, Lewis began to croon another Springsteen song.那天晚上晚些时候，刘易斯开始哼唱另一首斯普林斯汀的歌曲。Don't be startled by the smiling, white - haired man who croon " Merry Christmas " to you.当你见到那向你低声哼着 “ 圣诞快乐 ” 面带笑容的白发老...
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....