One on one;one by one;one to one

Posted by 123 on 2007/8/13 22:58:47
one on one;one by one;one to one . 哪一個是"一對一"?那其餘的兩個又如何解釋?

This Post was from: http://okenglish.tw/newbb/viewtopic.php?forum=4&topic_id=2205&post_id=8702