per是什么意思？

And although you don't read about this much, the United States is also a large exporter of oil products, selling about 2 million barrels of petroleum products per day to about 90 countries.

Marriott had its worst quarter ever, with revenues per room falling by 25%.

billion in American high schools, helping to open about 1,000 small schools-most of them with about 400 kids each with an average enrollment of only 150 per grade, About 500 more are on the drawing board.

Let's see, Group C, three to five days hire with unlimited mileage is 53 pounds per day.

For Group C cars is 6 pounds per day

The price is ￡60 per person including a continental breakfast.