例句與造句

1. As an average English word consists of about 4 5 letters, "'characters per minute "'( "'CPMn "'), a measure of characters processed in a minute, is normally 4 or 5 times larger than WPM, so that 20 WPM are roughly equal to 80 100 CPM ( not including spaces, which must add 20 to that ).
2. It's difficult to find cpmn in a sentence. 用cpmn造句挺難的