名词
中文翻译：徒步旅行者
同义词：
['trekker', 'hiker']
例句：
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1. He is a hiking enthusiast who loves to explore the outdoors.
他是个徒步爱好者，喜欢探索户外。
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2. Hiking is a great way to get exercise and enjoy nature.
徒步是锻炼和享受大自然的好方法。
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3. There are many trails in the park that beginner hikers can use to start their journey.
公园里有很多小路，初学者徒步旅行者可以用来开始他们的旅程。