• The Ganges river dolphin is also in grave danger; only a few thousand remain, and they live in some of the most polluted rivers on Earth.

    恒河河豚也是岌岌可危。 现数千头,生活地球污染严重水域。

    youdao

  • The Ganges river dolphin is also in grave danger; only a few thousand remain, and they live in some of the most polluted rivers on Earth.

    恒河河豚也是岌岌可危。 现数千头,生活地球污染严重水域。

    youdao

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