名词
中文翻译：杆
同义词：
['pole', 'stick', 'rod', 'shaft']
例句：
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1. The poles of the tent are securely fastened to the ground.
帐篷的杆子被牢固地固定在地上。
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2. The tallest tree in the forest is a pine, standing at over 30 meters tall.
森林中最高大的树是松树，高达30米以上。
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3. The pole was used to support the roof of the house.
那根杆子用来支撑房子的屋顶。