It is amongst the largest if not the largest trading partner of all the countries bordering it.

如果不是最大，也是与其相邻的国家最大的贸易国之一。

youdao

Britain maintains the status of the largest investor of EU in China and the 3rd largest trading partner of China.

英国继续保持着欧盟最大对华投资国和第三大对华贸易伙伴的地位。

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Over the years, the UK remains the EU's largest investor in China and the third largest trading partner of the country.

英多年保持欧盟内最大对华投资国和第三大对华贸易伙伴国地位。

youdao

The U.S.is India's largest trading partner, and the president paid tribute to India's large and growing economic role in Asia and throughout the world.

VOA: standard.2009.11.25

China is North Korea's largest trading partner and main political ally.

VOA: standard.2010.05.03

China remains Japan's second-largest trading partner after the U.S. and a key market for Japanese exporters.

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That gives the company more negotiating power, specifically with its largest trading partner, Amazon.

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China is also Africa's largest trading partner, surpassing the United States and its traditional European partners.

BBC: China