...院衰老研究所（National Institute on Aging，NIA）指出，间歇性断食对人类健康和寿命的影响都是尚不明确的（currently unclear）[1]；在目前的断食临床试验中，观察时间大多是8~12周，如果做了24周的研究，那已经算是很不错了（如果说只是为了减肥倒..
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对“制度和准则”中尚不明确的重要计提比例加以明确规定；专业资产评估师应对资产减值准备计提有所帮助；
Asset Devaluation Standard should be made to indicate the accurate implication of each judgment standard, to stipulate the imprecise important calculation ratio in institution and standard.
研究小组成员亚利桑那大学的丹尼斯 ·扎瑞茨基指出，“我们在对宇宙 90%的物质尚不明确的情况下，却声称了解宇宙的一切，这真有点令人难堪。”
It's a little embarrassing to claim we know anything about the universe when we don't know what 90 percent of the matter out there is.
虽然微塑料具体会对我们身体造成怎样的伤害尚不明确，但微塑料本身和他们吸收了大量的有害细菌这一事实让我们忧心忡忡。
Though the precise harm to our bodies remains unknown, concerns include the microplastics themselves, as well as the fact that they absorb a range of harmful bacteria.
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