VOA慢速英语2014.03.14
[audio]http://sound.yywz123.com/tingbbs/voa/voa20140314.mp3[/audio]Malaria is spread by mosquitoes, the insects like to reproduce in standing water. So when a dry area is irrigated, the disease can appear and spread.疟疾由蚊虫传播.蚊虫喜欢在静水中繁殖.因此当干燥地区被灌溉这种疾病就会开始出现和蔓延.
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