巴士每三十分钟一班,每次浏览共需五十分钟。
Buses leave every thirty minutes and each tour takes a total of fifty minutes.
医生建议进行适当的锻炼,比如每周三次进行步行,每次步行三十分钟。
Physicians recommend moderate exercise like walking for thirty minutes, three times a week.
每次上课会先讲述课程约莫二十到三十分钟不等,且第一、二次上课讲述会更长。
Each session begins with a lecture of varying length, but usually running for twenty-minutes to half an hour, although the lectures of the first two meetings will be somewhat longer.
How many people know that three times a week physical exercise,30 minutes each time has the same effect ? as our most powerful psychiatric drugs?
多少人知道,每周三次,体育锻炼,每次三十分钟,与最强劲的精神药物,有同样的效果?
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