一张没有内在价值的纸片竟然被全世界奉为优等货币，这简直是这个世俗世界的一个奇迹。

That a piece of paper of no intrinsic value should pass for good money the world over is nothing less than a secular miracle.

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经过15年的努力，袁隆平和他的学生们在1975年创造了一个伟大的奇迹——用不足世界9%的农田养活了世界近20%的人口。

After fifteen years of hard work, Yuan Longping with his students made a great wonder in 1975—feeding nearly 20% of the world's population with less than 9% of the world's farmland.

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袁为中国创造出了一个伟大奇迹——用世界不到9%的土地养活了近五分之一的世界人口。

Yuan helped China work a great wonder—feeding nearly one-fifth of the world's population with less than 9% of the world's total farmland,

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