这门课总共上12次，每次两小时。

The course is made up of 12 two-hour sessions.

《牛津词典》

我是在一所大型语言学校认识叶琛的，当时我刚来北京一个半月，正与朋友汤姆在这所学校上每周两次、每次两小时的汉语课。

I met Yechen at a large language school where my friend, Tom, and I began twice-weekly two-hour sessions six weeks after arriving in Beijing.

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2006年，德国队主场世界杯，每次有德国队的赛事时心血管急诊明显上升，特别是开赛后的两小时内。

In 2006, when Germany hosted the soccer World Cup, cardiovascular emergencies increased every time the German team played a match, especially within the first two hours after the start of each match.

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