Sports and dietetic habit are significant to bone mineral density.
运动与饮食习惯对于青少年的骨密度起重要的促进作用。
Comparing with Japanese teenage, the sports and dietetic habit still need to improve.
和日本相比，我国青少年的饮食与运动习惯有待提高。
The dietetic habit of college students has some problems and students are lack of nutritional knowledge.
大学生饮食习惯存在一定问题，且普遍缺乏营养知识；
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