例句：

　　Bees were buzzing in the clover.

　　蜜蜂在三葉草叢中嗡嗡作響。

　　Herds are fattening on the early clover.

　　家畜吃早春的苜蓿而上膘。

　　Herds are fattening on the clover of early spring.

　　牧群吃早春的苜蓿而長(zhǎng)膘。