还是有疑问.
答案是C的话，C的句子怎么翻译呢？
是 because (their bodies bum calories too slowly than because they eat too much)
还是 ( because their bodies burn calories too slowly) than (because they eat too much)
觉得很搞，如果是后面一种的话，应该怎么翻译。
比起因为他们吃得太多，因为他们的calories消耗太慢?
这是什么逻辑？ | 
