fifteen horses. 十五匹马.
例句：
Look! There are fifteen horses in the stable.
（图片来自网络侵删）
看!这个马场有十五匹马.
相关介绍horses的例句：
Their horses pranced and whinnied.
他们的马奔腾着、嘶鸣着。
Eighty horses trotted up.
80匹马小跑上来。
Cars gradually took over from horses.
汽车逐渐取代了马。
Several horses grazed the meadowland.
几匹马在牧场上吃草。
Horses need to be exercised regularly.
马需要有规律的训练。
