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Maybe it saves energy , he speculates .

他推测，也许它是在保存能量。

The business insider blog speculates that zynga will get free ad space on facebook in return .

《商业内幕》博客推测，zynga在facebook上投放了大量广告。

While the study did not address the causes of miscarriage , bhattacharya speculates that age may be a dominant factor .

该研究没有讨论流产的原因，bhattacharya猜测年龄可能是主要原因。

Mr chaney speculates that conquest altered society , casting an autocratic shadow across the centuries .

钱尼推断，征服改变社会，并造成跨越世纪的专制阴影。

While this study did not delve into the specific mechanism by which hunger affects long-term health , kirkpatrick speculates that both psychological and physiological factors may be at work .

尽管研究还没能找出饥饿长期影响健康的机理，但柯克帕特里克推测说，心理学和生理学的双重因素都在起作用。