Hippos are one of the most dangerous animals in Africa.

河马是非洲最危险的动物之一。

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Sharks are one of the most dangerous animals.

鲨鱼是最危险的动物之一。

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Whales are the largest animals on the Earth. Dolphins are one of the most intelligent animals. Sharks are one of the most dangerous animals.

鲸鱼是地球上最大的动物，海豚是最聪明的动物之一，鲨鱼则是最危险的动物之一。

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Whales are the largest animals on the Earth. Dolphins are one of the most intelligent animals. Sharks are one of the most dangerous animals.

鲸鱼是地球上最大的动物，海豚是最聪明的动物之一，鲨鱼则是最危险的动物之一。

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