The paper says the move represents a complete reversal of previous U.S. policy.
报上说这一举动反映了之前美国政策的彻底逆转。
Colour reversal: a colour film or paper which produces a positive image directly from a positive original.
彩色反转：一种彩色菲林或相纸，它把阳图原稿直接复制成阳图。
This paper analyses the causes of occurrence in reversal logistics, problems in practice, the economic benefits to an enterprise and the responsibility to the society.
文章分析了逆向物流产生的原因、现实问题以及逆向物流对企业产生的经济效益和履行的社会责任。
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