我想問for同from 有咩分別...????

for:
prep.
1. 為,為了
They fought for national independence.
他們為民族獨立而戰。
This letter is for you.
這是你的信。
2. 代替;代表
We used boxes for chairs.
我們用箱子當椅子坐。
3. 因為,由於
I am sorry for what I said to you.
我後悔不該對你講那些話。
4. 在(指定時間)
The meeting is arranged for 9 o'clock.
會議安排在九點鐘。
5. (表示時間,距離等)達,計
You can see for miles from the roof.
你站在屋頂上可以看到數英里之外。
6. 對於,關於;在...方面
I am too old for the job.
我年紀太大,做不了這工作。
7. 為得到,為贏得
He sent the waiter for a packet of cigarettes.
他讓侍者去拿一盒香煙。
8. 以...為代價;以...交換
He sold his car for 500 dollars.
他以五百元把車賣了。
9. 當作,作為
Do you take me for a millionaire?
你是不是把我當百萬富翁?
10. 贊成;支持;傾向於
Are you for the government or against it?
你是支持還是反對政府?
11. 朝...方向去;往,向
He left for Taipei.
他出發去臺北。
12. 就...而言
She is sophisticated for her age.
就年齡而言她是世故了一點。
conj.
1. 因為,由於
We must start early, for it will take two hours to drive to the airport.
我們得早點動身,因為開車去機場得花兩個小時。

from:
prep.
1. 從...起,始於
She is singing from morning to night.
她從早唱到晚。
2. 從;由
He rose from office boy to managing director in fifteen years.
他十五年裡從工友升到總經理。
3. 離(開)
Our school is two miles from the station.
我們學校離車站兩英里。
4. 從...來;出自
He comes from Shanghai.
他來自上海。
5. (表示去除,免掉,阻止,剝奪等)
The pill will relieve you from pain.
這藥丸將使你免受痛苦。
6. (表示區別,比較)
He is old enough to know right from wrong.
他已長大,能夠辨別是非了。
7. (表示原料)由
Flour is made from wheat.
麵粉由小麥製成。
8. 因為,由於;出於
He wasn't ill; he stayed in bed from laziness.
他沒病,躺在床上是因懶惰之故。
He is trembling from fear.
他嚇得發抖。

for係對於,供;往,向;為了;達,計;代,替,代表;贊成,擁護;由於,因為;至於
from係從,自,從…來;由於,出於;由

for..eg: the apple is for mary..中文係個apple係比mary的
from...eg:the apple is from mary...姐係個apple 係mary的..

FROM= 由
for = 給