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on (the, an) averageon (the, an) average平均，按平均数计算 Each household sold, on the average, two pigs.平均每户交售了两口生猪。 On the average, there are 300 tourists a week.每星期平均有300游客。 We received 20 calls a【详细解析】 |
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on dutyon duty值日，值班 He reported the murder to the police on duty.他将凶杀事件告知值班警察。 I go on duty at 8:00 am.我早晨8点钟上班。 Who is on duty today?今天谁值日? Please bleep the doctor on duty imme【详细解析】 |
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on footon foot走路，步行 We covered seventeen miles on foot. 我们步行了十七英里。 We're going on foot, not by car.我们走著去，不坐汽车。 Some people came by car, others came on foot.有些人是坐汽车来的，其他人是走【详细解析】 |
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on showon show展出，在上演（放映）Some new types of cars are now on show.一些新型汽车正在展览。All the new products were on show at the exhibition. 展览会上陈列著所有的新产品。 These pictures will be on show next【详细解析】 |
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on timeon time准时To our astonishment, they arrived on time.使我们惊讶的是，他们准时到了。 He will come on time even though it rains.即使下雨，他还是会准时来的。 You must get to the station on time.你必须准时赶【详细解析】 |
