如果中国能把667万公顷的盐碱地用于水稻生产，很可能会增加3000万吨左右水稻，这是对国家的一个巨大贡献。

If China could put 6.67 million hectares of saline-alkali soil into rice production, it would be very likely to increase by around 30 million tons, a huge contribution to the country.

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我们一天用完将近800棵竹子，20吨左右。

We get through nearly 800 bamboo trees a day. That's about 20 tons.

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全世界整个历史上已挖掘的金矿只有8万吨左右。

Only about 80,000 tons have been mined in the history of the world.

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