去年戴比尔斯在伯茨瓦纳, 纳米比亚, 南非和坦桑利亚的钻矿产量为51百万克拉，占世界钻石总产值的40%。

Last year De Beers produced 51m carats from its mines in Botswana, Namibia, South Africa and Tanzania, which amounted to 40% of the world's diamonds by value.

youdao

拥有万卷书的穷书生，并不想去和百万富翁交换钻石或或股票。

Thee scholar has thousands of books, and want to exchange ofdiamonds and millionaires or stock.

youdao

拥有万卷书的穷书生，并不想去和百万富翁交换钻石或股票。

Rolls of the book has a poor scholar did not want to go to the exchange of diamonds and millionaires or stock.

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