求翻译：南瘦北胖：身高和体重的差异主要是受环境和食物两个因素的影响，一 般说来，居住在草原、高原、高纬度、气候寒冷地区的并以麦面为主食的人，身材魁梧。而生活于热带、亚热带岛屿和滨海平原地区，从事农耕并以大米为主食的人，身材则较矮小。是什么意思？

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Weight : South thin north of height and weight differences are mainly affected by our environment and food and two factors, in general, living in the grassland, highland, and at higher latitudes, the climate cold regions and in wheat is the staple food is a burly, the people. While living in the tro

South thin north fat: The height and the body weight difference mainly is the environment and food two factor influence, in general, lives in the prairie, the plateau, the high latitude, the climate cold area and by Mai Mianwei staple food person, tall and powerfully built.But lives in the tropics,

North South thin FAT: height and weight differences are mainly under the influence of two factors for environment and food, in General, living in grassland, plateaus, high latitudes, cold weather and wheat is the staple food of the people of the region, and well-built. Live in tropical and subtropic

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