副词中文翻译
中文翻译：每小时一次
同义词：
['every half-hour', 'every hour', 'once every half-hour']
例句：
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1. Thetrain arrives at the station every half-hour.
火车每半小时到站一次。
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2.They meet every half-hour to discuss their progress.
他们每半小时会面一次，讨论他们的进展。
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3. She walks to the park every half-hour to exercise.
她每半小时散步去公园锻炼。