Most streets in the U. S. are pretty level.

美国大部分的马路是很平坦的。

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The overall technical level of yellow phosphorus industry of the former U. S. S.

前苏联磷化工总体技术水平比美国低。

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Confidence among home builders in the U. s. is at its highest level in more than 6.5 years.

美国房屋建筑商们的信心达到6年半以来的最高点。

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Confidence among home builders in the U. s. is at its highest level in more than 6.5 years.

美国房屋建筑商们的信心达到6年半以来的最高点。

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