a plant of the bean family grown in warm regions for food and to improve the soil

Cover crops such as rye, soybean, cowpea, or clover can be tilled in as a green manure. 可以将黑麦、大豆、豇豆或三叶草等覆盖作物作为绿肥耕入田里。

Cowpea is widely used as animal feed, but it also attracts many viruses and pests. 豇豆被广泛用作动物饲料，但它也引来了许多病毒和害虫。

the seed of this plant that is pale with a black spot, and is eaten as food

These beans are from the same family as cowpeas. 这些豆子与豇豆属于同一科。

The everyday food in Africa from the sixteenth century included rice, beans, cowpea, millet, and couscous. 从16世纪开始，非洲的日常食物包括大米、豆类、豇豆、小米和蒸粗麦粉。