你有两头母牛。
So far, he and his team have not succeeded, though they have cloned two cows and expect to clone a cat soon.
到目前为止,他和他的团队还没有成功,尽管他们已经克隆了两头牛,而且预计很快就会克隆一只猫。
Two cows browsed the hillside.
两头牛在山坡上吃草。
The researcher has already calculated that the cows from just two large dairies could fuel all the public buses in a medium-sized American city.
VOA: standard.2010.02.23
So, he intentionally inoculated his wife and two children with fluid that he got from one of his sick cows.
所以他给自己的妻子和两个孩子接种了,取自病牛的体液
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