二十八天
![二十八天](../cache/1196974.jpg)
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今年仲春份的天数是二十八天。
The number of days in February this year is28 .
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月亮绕地球旋转一周需要二十八天。
The whole journey of the moon round the earth takes twenty-eight days .
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我们通常在混凝土灌注后二十八天测定其强度。
We usually measure the strength of concrete at28 days after it has been cast .
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二十八天龄方块强度
Cube strength of 28 days
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上诉必须在收到最初决定通知之日起二十八天内提出。
The appeal must be lodged within twenty-eight days of the date of notification of the initial decision .
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“生命节律说”是所谓关于人的体力、情绪、智力分别具有二十三天、二十八天、三十三天节奏变化的理论。
" Life Circle " is a theory which deals with the periodicity of physical strength ,(?) on and intelligence of human beings .
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不错,福克先生所预定的八十天期限现在已经用去了五十二天,他只剩下二十八天的时间了。
Mr Fogg had , it is true , exhausted fifty-two of the eighty days in which he was to complete the tour , and there were only twenty-eight left .
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三十天,是九月,四月六月十一月;剩下都是三十一,唯一例外是十月;二十八天是平年,二十九天是闰年。
Thirty days hath september , april , june , and november ; all the rest have thirty-one , Excepting February alone , and that has twenty-eight days clear and twenty-nine in each leap year .