staple food crops

There is the worry that an increase in the use of food crops such as maize, cassava and sorghum is likely to increase the food price of most staple foods in Africa, notably corn.

人们担心对粮食作物如玉米、木薯和高粱不断利用可能会造成非洲主要粮食价格的不断上涨，特别是玉米。

Maize is one of the world's four most important food crops and the staple of more than a quarter of a billion east Africans.

玉米是世界上四大重要粮食作物之一，也是超过二亿五千万非洲东部人的主要粮食。

That newcomer, brown streak, is now ravaging cassava crops in a great swath around Lake Victoria, threatening millions of East Africans who grow the tuber as their staple food.

来势汹汹的褐条病毒现在正在维多利亚湖沿岸的大片农田中肆虐，并威胁到了数百万东非人的口粮，因为木薯是他们的日常主食。