Athens sweltered on Friday after a second heat wave in days swept through the country, bringing temperatures surpassing 40 degrees centigrade.

雅典周五闷热难耐，这些天来第二波热浪席卷该国，气温超过40摄氏度。

In the Sahara desert, one train car of dust is swept airborne every four seconds.

在撒哈拉沙漠中，每四秒钟就有一节火车车厢的灰尘被扫过。

The first wave, weeks ago, was the worst in 70 years. Now a second wave 20 times bigger is sweeping across Kenya and other countries.

几周前出现第一波蝗灾，这也是70年来最严重的，如今第二波是第一波的20倍之多，横扫了肯尼亚等其他国家。