年月日，加早午晚，of之前on代in
例： on the morning of 18th 18日早晨 on the evening of 4th 4日晚上
On the eve of their departure they gave a farewell banquet and their head gave a garewell speech. 他們在臨行前夕舉行了一次告別宴會，他們的團長發表了告別講話。
收音、農場，值日on
例：Did your supervisor like the story over the radio last night?
您的導師喜歡昨天從收音機裡聽到的'故事嗎?
I heard the news over the radio. 我從收音機裡聽到了這一條訊息。
talk over the radio 由無線電播音
on TV 從電視裡......
hear something on the wireless 在無線電裡聽到
My brother works on an Army reclamation farm. 我哥哥在一個軍墾農場工作。
The students are working on a school farm. 學生們正在校辦農場勞動。
This is a farmers house on a farm. 這是農場的農舍。
Who is on duty, tody? 今天誰值日?
We go on duty at 8 a.m. 我們上午8點鐘上班。
關於、基礎、靠、著論
例: This afternoon we are going to listen to a report on the international situation. 今天下午我們要聽關於國際形勢的報告。
