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1·The staple crop is rice.

主要农作物为水稻。《牛津词典》

2·Tea is the staple crop here.

本地产品以茶叶为大宗。《新英汉大辞典》

3·Wheat was a staple crop in China.

小麦是中国重要的粮食作物。

4·That used to be the staple crop of the islanders.

那以前是岛民的主要作物。

5·Wheat is a staple crop for millions of people around the globe.

小麦是全世界上千万的人口的主要粮食。

6·Maize is a staple crop in South-East Asia, both as a food and animal feed.

玉米是东南亚的一种主粮作物，既作为食物，又作为动物饲料。

7·Maize is a staple crop in South-EastAsia, both as a food and animal feed.

玉米是东南亚的一种主粮作物，既作为食物，又作为动物家畜养料。

8·Asian countries are curbing exports of a staple crop to avoid shortfalls at home.

亚洲国家都在控制大米这种主要粮食的出口，以免出现自身的短缺。

9·Corn was a staple crop in ancient Mesoamerica, so tortillas were very common and well liked.

玉米在古代中美洲是最基本的农作物，所以玉米圆饼很常见，并且十分受人喜爱。

10·Wheat is the second staple crop after rice, and has very important role in the national food production.

小麦是中国仅次于水稻的第二大粮食作物，在我国粮食生产中占有举足轻重的地位。