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来源:雅诚德英语网
On the other hand, rainfall increased in the interior of western Africa, and the northern limit of the tsetse fly, an insect fatal to cattle, moved south.
另一方面,西非内陆的降雨量增加,采采蝇活动区域的北部边界向南移动——一种对牛致命的昆虫。
On the other hand, rainfall increased in the interior of western Africa, and the northern limit of the tsetse fly, an insect fatal to cattle, moved south.
另一方面,西非内陆的降雨量增加,采采蝇活动区域的北部边界向南移动——一种对牛致命的昆虫。