名词
中文翻译：标记杆
同义词：
['marker', 'flagpole']
例句：
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1.The marking pole is used to indicate the boundaries of a field.
标记杆用于指示田地的边界。
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2. The flagpole was raised at the start of the ceremony.
旗杆在仪式开始时升起。
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3. The marking poles were set up in the center of the parade.
标志杆被设置在游行的中心。