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最佳答案:an hour and a half或者 one and a half hours
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最佳答案:每次一个半小时:an hour and a half once他每周去游泳三次,每次一个半小时:goes to swim three times a week,
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最佳答案:an hour and a half或者 one and a half hourstwo hours and a half/two and a half hou
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最佳答案:He went to Shanghai to spend one and a half hours by plane
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最佳答案:一个半小时half an houran hour and a halfone and a half hourninety minutes.one hour an