area in central northern U.S. producing corn . a large area in the central part of the northern U.S. where a lot of corn is grown
大农业地带
1.美国中部主要产玉米地带。
2.corn belt 玉米主要产区
area in central northern U.S. producing corn . a large area in the central part of the northern U.S. where a lot of corn is grown
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