I don't set up to be an authority on this subject.

我不认为自己在这门学科方面是权威。

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Walter Bagehot, an authority on bank runs, once wrote: “Every banker knows that if he has to prove that he is worthy of credit, however good may be his arguments, in fact his credit is gone.”

银行经营的权威沃尔特·白芝浩曾经写道：“所有银行家都知道，信用需要证明之日，即是信用不再之时，不管证明信用的依据有多强。”

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Bush signed on July 26, 1990, can be burdensome, costly and an overextension of the government's authority over the private sector, others say it could be stronger.

布什于1990年7月26日签发的法令已成为一种昂贵的负担了，因为其过度强调了官方在个人问题上的权利，而另外一些人确认为此法令应该得到加强。

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Widely acknowledged to be a world authority on distance learning, Mr Bear acts as an expert witness for the FBI on trials involving so called diploma mills where degrees are sold for cash.

BBC: 'Fake doctor factory' awards degrees

As Paul Redmond Michel, an authority on patent law, points out, these operations will be larger than anything either corporation has in the United States.

FORBES: Globalism and Technology: A Hidden Misconception That Dooms the U.S. Economy

The report - an annual report on the local authority's allotment policy - will be considered by next week's planning, environment and development committee.

BBC: Allotment holders to be surveyed on mental health