on an average

On an average day you take 15,000 steps and foot perspires 200 ml of sweat.

平均每一天你的脚要迈15,000步,同时分泌出200毫升的汗液.

They went to the theatre on an average of 10.3 times a year.

他们平均每年去剧院十点三次.

As a reasonable guess , they might, on an average, be 100 light years away.

据合理推算, 外星人离我们平均距离也有100光年之远.

On an average day, they now spend 7 . 5 hours using media.

现在,在平常日子, 他们每天要花上7.5个小时.

Each quarry on an average employs about 120 workers.

每座矿山平均雇佣120个工人.

He smokes ten cigarettes a day on an average.

他平均一天抽十根烟.

On an average day, they now spend 7 andhalf . 5 hours using media.

现在平均每天, 他们花费7.5个小时使用媒体.

He smokes 20 cigarettes a day on an average.

他平均天天要抽20支烟.

On an average we would be spending £300 per day.

平均下来，我们每天要花费300英镑。