例句：

　　Several horses grazed the meadowland.

　　幾匹馬在牧場上吃草。

　　Horses need to be exercised regularly.

　　馬需要有規(guī)律的訓練。

　　Our horses plodded down the muddy track.

　　我們的馬沿著泥濘小路蹣跚而行。