in the years after world war i, there was an upsurge in boy births, and dr gellatly said that a genetic shift could explain this.
在第一次世界大战后的若干年中,出生了大量的男孩。杰拉特医生说遗传的转换可以给出解释。
Concurrently, a genetic shift is also changing your consciousness.
目前, 遗传改变也正在改变你们的意识.
pandemic influenza emerges as a result of influenza viruses undergoing major genetic changes known as antigenic shift .
大流行流感出现的原因,是因为流感病毒出现称为抗原转移的重大基因变异。
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