在标准的十进制中，几乎所有实数都不能用有限小数表示。
In the standard decimal representation, almost all real numbers do not have a terminating decimal representation.
认识有限小数和无限小数。
分数亦可表示为有限小数或无限循环小数。
Scores can also be expressed as a finite or infinite decimal recurring decimal.
分数亦可表示为有限小数或无限循环小数。
Scores can also be expressed as a finite or infinite decimal recurring decimal.
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