For about a decade, lunar scientists have known the moon contained a lot of hydrogen, thanks to the lunar Prospector mission, but it wasn't entirely clear what form that hydrogen was stored in.

十年来的月球探测，使得月球科学家们已经知道月球上有大量的氢，但并不完全清楚它们以何种形式存在。

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Guidance on how to learn and practice each drill effectively-like that provided above-illustrated by clear pictures like those above are contained in the companion Workbook.

如何学习和练习每一个练习有效的指导，就像上面提供的那样，通过清晰的图片如上面的图片中包含的指南手册中所示。

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To put on the record, the Chinese delegation wants to make our position clear concerning some issues contained in the Final document.

对最后文件中涉及的一些问题，中国代表团有如下立场记录在案。

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Had the package contained clear threats and arrived before the shooting, there would be no question about the duty of the psychiatrist to hand it over to authorities, said Professor Arthur Caplan, head of medical ethics at New York University's Langone Medical Center.

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Your employee practices and policies should be clear and in writing and contained in a book.

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It says that the labelling of omega-3s should be clear about which type is contained in a product.

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