His reputation has been shredded by a series of gaffes and policy flip-flops.
2
三种环境趋势——淡水短缺、表土流失和气温上升——正使世界粮食供应越来越难以跟上需求增长的速度。
The three environmental trends—the shortage of freshwater, the loss of topsoil and the rising temperatures—are making it increasingly hard to expand the world's grain supply fast enough to keep up with demand.
3
它是由眼睛血管受损引起的，会导致视力逐渐丧失和失明。
It is caused by damage to the blood vessels in the eyes, and results in gradual vision loss and blindness.
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