更糟糕的是，研究表明，到2050年，世界需要的粮食将是现在的两倍。
Worse, studies suggest that the world will need twice as much food by 2050.
大家好，现在我来向大家介绍一下我们研究的一些有关世界粮食危机的项目。
Hello, everyone, Now I'll tell you something about our research project The World Food Crisis on behalf of our group.
现在我会告诉你一些有关我们的研究项目，世界粮食危机对代表我们集团。
Now I'll tell you something about our research project The World Food Crisis on behalf of our group.
现在我会告诉你一些有关我们的研究项目，世界粮食危机对代表我们集团。
Now I'll tell you something about our research project The World Food Crisis on behalf of our group.
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