在过去十年里，中国已从纯粹的受惠国进升为纯捐助国。

Over the past decade China has evolved from a net recipient to net donor.

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繁荣的市场使得中国成为了锡的纯进口国。

China's booming market has also turned the country into a net importer of the metal.

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为了使母亲们能够实行和坚持在最初6个月的纯母乳喂养，世卫组织和联合国儿童基金会建议。

To enable mothers to establish and sustain exclusive breastfeeding for six months, WHO and UNICEF recommend.

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