The entire procedure is usually completed within one to three hours.

整个过程通常在一至三个小时内完成。

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"Consider eating a small meal or snack one to three hours prior to exercise," Bender says.

即便你是在清晨锻炼，“在锻炼前1到3个小时应吃点小吃或点心，”Bender说。

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The treatment lasts one to three hours and, unlike surgery or radiation therapy, can be repeated if necessary.

此治疗需要一到三个小时，而且不象外科手术和放疗，它可以在必要的时候重复。

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The Earth takes twenty-four hours to complete one full turn or revolution of three-hundred-sixty degrees.

VOA: special.2010.07.14

Scott says that waiting in line for three hours was worth it to hold one of the medals.

VOA: standard.2010.02.16

CareFusion's nurse educators teach up to 20 nurses at a time in hospital classes that run from one to three hours.

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Bush's doctors said the procedure would take about one to three hours and the ultra short-acting intravenous anesthesia propofol will be used.

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The bloggers reported they spend hours on their posts 45 percent said one to three hours a week, and 16 percent more than three hours.

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