e from 缺席，不在　如：

His long absence from work delayed his promotion.
他長期不上班，耽誤了提升。

2. absence of 缺乏　如：

In the absence of my commanding officer, I acted on my own initiative.
指揮官不在場，我主動見機行事。
In the absence of their teacher the class was in a state of anarchy.
教師不在，班上一片混亂。

3. access to ……的入口，通路　如：

The only access to the farmhouse is across the fields.
要到那農舍去唯有穿過田地。
She was forbidden access to the club.
人家不允許她到那個俱樂部去。

4. acquaintance with 相識，了解　如：

I have only a nodding acquaintance with Japanese.
我對日語僅略知一二。
The guide has some acquaintance with Italian.
導游懂得一點意大利語。

5. action on sth 對……的作用　如：
evidences of glacial action on the rocks
巖石上的冰河留下的痕跡

6. addition to sth 增加　如：

She is a beautiful addition to the family.
她是我們家漂亮的新成員。
Can we finance the addition to our home?
我們可以為你提供經費。

7. admission to /into 進入；入(場，學，會等)　如：

How does one gain admission to the Buckingham Palace?
怎樣才能獲準進入白金漢宮？
Admission to British universities depends on examination results.
英國大學入學以考試成績?yōu)閼{。

8. admission of sth 承認 ?如：

His admission of guilt surprised everyone.
他供認犯罪使大家感到意外。
The write of the letter is ipso facto an admission of guilt.
寫此信的本身就是一種認罪。

9. advance in 改進,進步，如：

an advance in genetic engineering
遺傳工程學方面的進展
to advance in years
年紀增長

10. advantage over 優(yōu)于……的有利條件 ?如：

Now we have won an advantage over the enemy.
我們現在經贏得了對敵人的優(yōu)勢。?