The cows calved last night.

昨天晚上母牛产犊了。

The greenhouse effect is causing part of Antarctic glaciers to calve chunks of ice into the sea.

温室效应使一部分南极冰川崩解，大块浮冰漂如海中。

After calved, this cow produced more milk.

生完小牛后，这只母牛产奶更多了。

When his cows calve each year he keeps one or two calves for his family.

每年他的母牛产犊时，他都为家里留下一两头。

The whales migrate some 6,000 miles to breed and calve in the warm lagoons.

这种鲸鱼环游了6,000英里到暖水湖里生育繁殖。

The cow is expected to calve next week.

这头母牛预期下周生小牛。

The icebergs and glaciers calve .

冰山和冰川在瓦解。

The whales calve at this time of year.

鲸鱼在每年的这个时候产仔。