回上一层第一部 第叁课 --- 请重复跟读，直到可以於声音档的留空之间唸完整句為止；熟练之后您必将可以 "脱口而出" 地说出标準的美式英语
- all in all
- All in all, it was a total success.
- all of
- Don't eat all of the food yourself!
- all of a sudden
- All of a sudden she fainted and fell to the ground.
- It began thundering and raining all of a sudden.
- all one
- Apples and oranges are all one to me.
