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This doctor found out that what made the Isthmus so unhealthful waswhat do you suppose?nothing but little mosquitos. 这个医生发现造成地峡如此有害于健康的罪魁祸首是你猜是什么呢？竟然只是小小的蚊子。 These mosqui

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This stagnant muskeg is a perfect breeding ground for mosquitos. 这片臭气蒸腾的沼泽 滋生了大量蚊子 I hate mosquitos!But mother nature has provided a solution. 我讨厌蚊子 但大自然提供了解决方法 Okay.Covering yourself wi