VOA慢速英语2014.06.11
[audio]http://sound.yywz123.com/tingbbs/voa/voa20140611.mp3[/audio]African farmers say that a combination of unpredictable rain and rising temperatures creates an environment for crop diseases that affects production.非洲农民说,降雨不可预知和气温上升相结合,形成了影响产量的作物病害环境.
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