As for the whole country, the cacotrophia problem mostly happens in the western china, teenagers who are in the west part of china don't take enough calorie and protein so that it leads cacotrophia.
As for the whole country, the cacotrophia problem mostly happens in the western china, teenagers who are in the west part of china don't take enough calorie and protein so that it leads cacotrophia.
我国的营养不良问题主要集中于西部，这里的青少年由于热量和蛋白质摄入不足，导致营养不良。