首先，即使大豆有可能具备防病特性，但这并非意味着它因此就能抵抗慢性疲倦和慢性忧郁症。
First of all, simply because soy may have disease-preventing properties, that does not mean that it can therefore fight chronic fatigue and chronic depression.
或许，大豆可以预防骨质疏松症，流行性腮腺炎或甚至是水痘，但这并非意味着它能具体地治疗慢性疲倦和慢性忧郁症这样一些问题。
Perhaps soy can help prevent osteoporosis (bone loss), mumps or even chicken pox, but that does not mean that it can specifically address the problems of chronic fatigue and chronic depression.
在本段论述中，论述者援引了一项研究来证明，北美洲人患慢性疲倦和慢性忧郁症的比例要比居住在亚洲的人令人惊讶地高。
In this argument, the arguer cites a study showing that North Americans suffer from an amazingly higher rate of chronic fatigue and chronic depression than people living in Asia.
一项最近的研究表明，居住在北美大陆上的人们要比居住在亚洲大陆上的人们患慢性疲倦和慢性忧郁症的比例分别超出9倍和31倍。
A recent study shows that people living on the continent of North America suffer 9 times more chronic fatigue and 31 times more chronic depression than do people living on the continent of Asia.
医生们不知道慢性疲劳综合症的致病原因。该病的特征是使人虚弱无力的疲倦、慢性疼痛，症状的轻重则可能随时间变化。
Doctors don't know what causes chronic fatigue syndrome, characterized by debilitating fatigue and chronic pain with symptoms that can wax and wane over time.
医生们不知道慢性疲劳综合症的致病原因。该病的特征是使人虚弱无力的疲倦、慢性疼痛，症状的轻重则可能随时间变化。
Doctors don't know what causes chronic fatigue syndrome, characterized by debilitating fatigue and chronic pain with symptoms that can wax and wane over time.
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