Since the current world food shortage is trend-driven, the environmental trends that cause it must be reversed.

由于当前世界粮食短缺是环境趋势导致的，因此必须扭转这一趋势。

youdao

In contrast, the recent surge in world grain prices is trend-driven, making it unlikely to reverse without a reversal in the trends themselves.

相比之下，最近的世界粮食价格上涨是由趋势造成的，除非趋势本身得以逆转，否则这种上涨是不可逆的。

youdao

I am responsible for financial development programs in many parts of the world, so forecasting long range trends and making predictions on the basis of present evidence is what I do.

我负责世界上许多地方的金融发展项目，所以我的工作就是预测其长期趋势，并在现有证据的基础上做出预测。

youdao

just empirically speaking about the Harvard students, looking the trends and statistics-- empirically speaking, Americans are the most generous people in the world.

或只是说哈佛学生，根据发展趋势和统计，美国人是世界上最慷慨的人。

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