詞語：per-
per-的解釋
per-[pə]pref. 通；甚；總
per-的意思
Per- 通過，徹底，不利;高，過;通，總，每;完全，非常，完美，通過;Per Pinstrup-Andersen 安德森;weight per horse-power 每馬力重量;tons per man-hour 噸人·小時;噸人Passengers Per Bus-Kilometer 每車公里客運密度;
per-的參考例句
1.Staff: Well maybe our pay-per-use card would suit your lifestyle more. 工作人員：那麼也許按次支付卡更適合您的生活方式。
2.Pay-Per-Click (PPC) advertising is a good supplement to natural search engine optimization, IF you keep a few tactics straight. 付費點擊廣告（PPC的）是一個很好的補充自然搜索引擎優化，如果你把幾個戰術直。
3.That is a big sum in an area where four of every five people live in farming households where per-capita income is less than $300 a year. 這對於那些人來說是一大筆錢，在他們生活的地區五分之四的人出身於農民家庭，他們的人均年收入不超過300塊。