1.The scientist have discovery.
2.Farmers in south-east Asia lose an estimated 1 billion each year from rice crops being destroyed by flooding.
3. More than $1 billion of rice is lost this way every year.
4.The food risk
5.Dr. De(I can't listen very clearly)said that scientists had been trying for half a century to develop a water resistant crop.
6.For 40 years, rice has been at the heart of the "green revolution"
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