prep. Through; by means of; through the agency of; by; for; for
each; as, per annum; per capita, by heads, or according to individuals;
per curiam, by the court; per se, by itself, of itself. Per is also
sometimes used with English words.
prep. 每一, 通过, 经, 按照
[经] 每, 按照
1. The ticket costs ten dollars per person.
每个人的票价是十美元。
2. She drinks two cups of coffee per day.
她每天喝两杯咖啡。
3. The car can travel 30 miles per gallon of gas.
这辆车每加仑油能行驶30英里。