奶牛 [畜牧] cow ; dairy cattle ; dairy ; cow
球形奶牛 Spherical Cow
奶牛场 cattle farm ; dairy ; Dairy cattle farm ; cattle e farm
空地上的奶牛 The Cow in the field
奶牛生产性能测定 DHI ; Dairy Herd Improvement
奶牛能量单位 NND
奶牛大战外星人 Cows Vs Aliens ; Cows VAliens ; Bombs vs Zombies
疯狂的奶牛 crazy cow ; Mad Cows ; Wacky Cows
现金奶牛 Cash Cow ; Dairy cow
So, it's awkward to have to wait for a cow to get infected before you can vaccinate a population.
在给人们预防接种之前,你只有干等着,直到有一头奶牛感染了病毒才行
The only way that we knew how to grow it reliably was to grow it in its natural host: cows.
那目前我们所知道的唯一途径就是,利用它的自然宿主,奶牛
The idea was to give cows away to village farmers and to observe the outcome.
他们计划赠予村民奶牛,然后观察产出
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