There are obvious gaps between China and the United States in yield, quality and export amount of walnut at present.

现阶段我国核桃与美国核桃在产量、质量、出口量等方面均存在较大差距。

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For the next two months his wife and grown daughter, back home in Walnut, California, and his partner, Hsu, frantically called the State Department and their contacts in China.

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