完成以下步骤之后，你今天就可以成为约塞米蒂国家公园的初级护林员。
You could become a Yosemite's Junior Ranger today by completing the following steps.
每年，成千上万3到13岁的孩子在全美各地的国家公园成为初级护林员。
Every year, tens of thousands of kids aged 3 to 13 become Junior Rangers in different national parks across America.
仅在约塞米蒂国家公园，就有2万多名儿童参加了约塞米蒂初级护林员项目。
At Yosemite alone, more than 20,000 kids take part in the Yosemite Junior Ranger Program.
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