Your will be graded down if you are not prepared for class.

如果你没为上课准备好一切，也会降低你的成绩等级。

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The road is no longer fit for heavy traffic, and will be finally graded down.

这条公路不适应繁忙的交通，最终会被降低级别。

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And thirdly, aesthetic studies must be strengthened whereas the conventional restoring type of research is to be graded down.

第三，加强美学方面的研究，淡化传统的文化和还原式研究。

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Some of their other debt has been down-graded by bond-rating agencies, and their stock prices continue to fall.

NPR: Bailout Vow Does Little To Aid Fannie, Freddie

This week two rating agencies down-graded Russia's debt.

ECONOMIST: Russia��s finances

So they went into these really risky forms of insurance, and now as those sub-prime mortgage bonds have been down-graded and started to blow up, the bond insurers are starting to blow up, too, and the real significance is: What does it mean not just for municipalities all over the country but for the entire market?

NPR: Bond Insurer Losses Could Have Broader Impact