适应性变异最初表现为小群人发病，一些证据显示人际传播，这或许可给世界一些时间采取防御行动。
Adaptive mutation, expressed initially as small clusters of human cases with some evidence of human-to-human transmission, would probably give the world some time to take defensive action.
她说，麦金农的黑客活动“并不是非法访问计算机时的随机试验，而是在关键时刻故意破坏美国防御系统，并且留下了证据确凿的损害。
She said McKinnon's hacking activities "were not random experiments in computer hacking, but a deliberate effort to breach US defence systems at a critical time which caused well-documented damage.
仍无证据说明十二指肠溃疡病人中的十二指肠防御机制不完善。
There is as yet no evidence that duodenal defense mechanisms are faulty in patients who develop duodenal ulcer.
然而越来越多的证据证实呼吸道黏膜上皮细胞在感染和过敏刺激中发挥关键性主动防御作用。
However, growing evidence supports the notion that the respiratory epithelium plays a key role in host responses to infectious and allergenic stimuli.
然而越来越多的证据证实呼吸道黏膜上皮细胞在感染和过敏刺激中发挥关键性主动防御作用。
However, growing evidence supports the notion that the respiratory epithelium plays a key role in host responses to infectious and allergenic stimuli.
应用推荐