from A to Z　从头至尾
I know that from A to Z. 我很了解这件事。
above somebody　深奥
Well,this sort of talk is above me.我不懂你们在讲什么。
all ears 全神贯注地倾听着
When you tell Mary some gossip,she is all ears.跟玛丽讲一些小道消息，她会听地仔仔细细。
all the more　更加，益发
You'll be all the better for a holiday.度一次假，对你会更有好处。
all dressed up 打扮得整整齐齐
She is all dressed up and nowhere to go.她打扮得整整齐却无处炫耀。
all in all 总的说来；最心爱的东西
The daughter is all in all to him.女儿是他的无价宝。
all out 竭尽全力
They went all out.他们鼓足了干劲。
all over　全部结束；浑身，到处
Glad,it is all over.这事全部结束了，好得很。
I'm wet all over.我浑身都湿了。
all set　准备就绪
He is all set for an early morning start.他已做好清晨出发的一切准备。
all you have to do 需要做的是
All you have to do is to calm yourself down and wait for the good news.你需要做得是静下心来等好消息。
as easy as falling of a log /as easy as snapping your fingers /as easy as ABC 容易得很
To me,a good story teller would be as easy as falling of a log.
对我来说，讲个故事还不是随手拈来。
as busy as a bee 非常忙
Mum is always as busy as a bee in the morning.妈妈每天早上都忙得不可开交。
at one's fingertips　了如指掌
How to get to that little island is at his fingertips.他知道怎么去那个小岛。
at one's wit's end　智穷
Don't ask him.It is also at his wit's end.不要问他了，他也不知道。
big shot 大人物，大亨 ; big potato 大人物
He is a big shot in our little town.
black sheep　败家子，害群之马
Every family has a black sheep.家家有本难念的经。
black and blue　遍体鳞伤
The thief was caught red-handed and beaten black and blue.那个小偷当场被抓住并被打得青一块紫一块的。
black and white　白纸黑字
The proof is in black and white and the murderer has no any excuses.证据确凿，凶手再也无话可说。
blind alley　死胡同
You are heading into a blind alley.你正在钻牛角尖。
blow hot and cold　摇摆不定
This guy seemed to have no own idea.He always blew hot and cold.这家伙好象没什么主张，总是摇摆不定。