英译中，来自翻译练习

·英译中：

原文：

If differences in calorie burn can't explain why some countries have higher obesity rates than others, then it must be something else. "And that would be diet," says Tobias.

译文：

如果热量消耗的差异无法解释各国肥胖率为何不同，那背后必然有其他原因。“答案就是饮食。”托比亚斯说。