Each cow normally produces only one calf at a time.

在一般情况下，一头母牛每次只能产一头牛犊。

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A calf is a young cow. A young female cow, especially one that has not yet had a calf, is called a heifer: H-E-I-F-E-R.

VOA: special.2009.07.21

One calf was stillborn and the other was located on a farm outside of California.

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The floods, however, damaged their home and washed away their livelihood two buffaloes, one calf, her sewing machine, and furniture.

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The next one is Arshavin - calf strain, three weeks.

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