很多谈话的内容都很实际，很难归入这两大类之中。例如，询问家庭作业，询问谁正在倒垃圾等等。
Many conversations were more practical anddid not fit in either category, including questions about homework or who wastaking out the trash, for example, Dr. Mehl said.
时间就是金钱，所以应该归入成本计算公式之中。
Time is money and should be considered in the total cost equation.
时间就是金钱，所以应该归入成本计算公式之中。
Time is money and should be considered in the total cost equation.
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