prep.

1. 在……上
   He laid a hand on my shoulder.

   他把一隻手放在我肩上。

2. 以……支持，掛在……上；以……為軸
   There is a picture on the wall.

   牆上有一幅畫。

3. 朝，向
4. 靠近，在……旁，沿著
   She stood on my left.

   她站在我左邊。

5. 在……的時候，在……後立即
   He jumped with joy on hearing the news.

   他一聽到這個消息就高興得跳了起來。

6. 關於，有關
   The teacher made comments on our compositions.

   老師就我們的作文作了講評。

7. 以……方式，透過
   Did you hear it on the radio?

   你是從收音機聽到這消息的嗎？

8. 憑……，靠……；使用……，吃……
   They said they were acting on instructions.

   他們說他們是奉命行事。

9. 處於……狀態，進行中
10. 屬於……，參加……，是……的成員
    He is on the school volleyball team.

    他是校排球隊隊員。

11. 加之於，重疊於
12. 由……支付
    Have another coffee on me.

    再來一杯咖啡，我請客。

13. 帶在……身上

ad.

1. 繼續
   They talked on until midnight.

   他們一直談到深夜。

2. 向前
3. 穿上，蓋上，連接上
   It's cold today. Why don't you put your overcoat on?

   今天很冷。為什麼不把大衣穿上？

4. （機器）處於工作狀態；開著；通著
   He left the engine on while waiting for Joe.

   他在等候喬時讓汽車引擎開著。

5. 上演著；在進行中

a.[Z]

1. （機器等）工作著的，開著的
2. 正在上演的，在放映的
   What's on for tonight at the cinema?

   今晚電影院上映什麼片子？

3. 在發生的，在進行的
   The strike is still on.

   現在仍在罷工。

4. 菜單上有的，供應的
   I'd like to have some salmon if it is on.

   如果有大馬哈魚供應，我想來一點。

5. 【俚】知情的
6. 【美】【俚】醉了的

prep.

1. physically in contact with and supported by (a surface).
   ▸located somewhere in the general surface area of (a place).
   ▸on to.
   ▸in the possession of.
2. forming a distinctive or marked part of the surface of.
3. about; concerning.
   ▸having (something) as a basis.
4. as a member of (a committee, jury, etc.).
5. having (something) as a target, aim, or focus.
6. having (something) as a medium for transmitting or storing information.
   ▸being broadcast by (a radio or television channel).
7. in the course of (a journey).
   ▸while travelling in (a public service vehicle).
8. indicating the day or part of a day during which an event takes place.
   ▸at the time of.
9. engaged in.
10. regularly taking (a drug or medicine).
11. paid for by.
12. added to.

adv.

1. physically in contact with and supported by a surface.
   ▸(of clothing) being worn by a person.
2. indicating continuation of a movement or action.
   ▸further forward; in an advanced state.
3. (of an event) taking place or being presented.
   ▸due to take place as planned.
4. (of an electrical appliance or power supply) functioning.
5. (of an actor) on stage.
   ▸(of an employee) on duty.

n.

[名]

1. ①（網球等）壓線球。
2. ②（開關等）開著；開。