help Eng Grammar

since係講由幾多年開始做果件事，since後面多數都係跟年份，如1999
eg:i play volin since 1999

for係講你做左個樣野幾奈(可能係幾多年or幾多個月)
eg:i play volin for 3years

The six words are
please
the
yellow
behInd
stand
line

Since 此後;從那時到現在
She left school three years ago and has worked as a nurse ever since.
既然;因為,由於
Since it is so hot, let's go swimming.

For 為,為了
They fought for national independence.
This letter is for you

在(指定時間)
The meeting is arranged for 9 o'clock.


Please stand behind the yellow line.

Since 解作 : 此後;從那時到現在
例子: She left school three years ago and has worked as a nurse ever since.
她三年前畢業,從那時起便一直當護士。
例子2: She work as a nurse since she left school three years ago.
(當中包含 "時間" 的因素)

For 解作 : 為,為了
例子 : They fought for national independence.
他們為民族獨立而戰。
(當中包含了 " 原因" 的因素)

ase / e / ind / th / li/ sta/ low / nd / ple / beh / ne / yel
能拼出 :
Please stand behind the yellow line

yel / low - yellow

beh / ind - behind

li / ne - line

ple / ase - please

sta / nd - stand

th / e - the

2007-07-28 22:57:27 補充：
The whole sentence should be,Please stand behind the yellow line