There is little scientific evidence to substantiate the claims.

几乎没有能证实这些断言的科学证据。

《柯林斯英汉双解大词典》

You should go through the paper many times—and then again—working to substantiate and clarify your ideas.

你应该一遍又一遍地通读论文，努力充实和阐明你的观点。

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Claims are therefore specially hard to substantiate.

因此特别难去证明相关声明。

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U.S. prosecutors Sean Berkowitz and John Hueston promised a host of witnesses to substantiate their claims of wrongdoing.

FORBES: Case Closed For Lay, Skilling

Both parties' claims are dubious and will be difficult to substantiate one way or another.

ECONOMIST: Spending plans

Paperwork would have to be provided to substantiate their losses not easy years after the event.

ECONOMIST: Some things even people on Wall Street will not do for a buck