1、on的讀音:英 [?n] 美 [ɑ?n],在…上。
2、I got to know David on the second day of middle school. 我在上中學的第二天就認識了大衛。
3、Several workers interviewed during a factory visit on Friday said they were also doing overtime each Saturday. 在上周五參觀該工廠期間,一些接受我們采訪的工人表示,他們每周六也要加班。