其次最常见的农作物，大豆，回报低，但轮作是必要的用以保证土壤能够拥有宽裕的玉米产量。
The second most common crop, soybeans, yields a lower return but crop rotation is necessary to keep the soil in shape for bounteous corn yields.
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。
Corn was a staple crop in ancient Mesoamerica, so tortillas were very common and well liked.
尽管那块田地是属于祖父的邻居，但在那个时候，邻居之间作实物交易是很常见的，所以祖父也能在那块田地种上自己喜爱的农作物。
This was not his land but back in those days it was not unusual to barter with the neighbours to worked it for them so he could grow the vegetables that he loved.
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