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1.The rock ranger was responsible for maintaining the park's trails.
岩石管理员负责维护公园的步道。
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2. The rock ranger had to make tough decisions about which rocks to remove.
岩石管理员不得不做出艰难的决定，关于哪些岩石需要移除。
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3.The rock ranger was amazed by the beauty of the natural formations.
岩石管理员对自然形成的美景感到惊叹。