希儷。生活

while    IPA[wʌɪl]

名詞n.
noun: while,  (複數名詞 ) plural noun: whiles
1. a period of time(一段時間):
we chatted for a while(我們聊了一會兒)
she retired a little while ago(她不久前退休了)

2. for some time:
can I keep it a while? (我可以保留它一段時間嗎？)

3. at the same time; meanwhile(與此同時):
he starts to draw, talking the while (他開始畫畫，與此同時說話)

4. during the time that:
beseeching him, the while his hand she wrung

連接詞conj.
1. during the time that(那段時間); at the same time as(在同一時間)；
nothing much changed while he was away   (他不在的時候沒什麼大改變)

2. whereas(而) (indicating a contrast表明對比)  
one person wants out, while the other wants the relationship to continue(一個人想要出去，而另一個人希望這種關係繼續下去)

3. in spite of the fact that; although(儘管事實是;雖然):
while I wouldn't recommend a night-time visit, by day the area is full of interest.
(雖然我不建議夜間訪問，白天該地區充滿了興趣)

relative關係詞      
1.  during which(在。。。期間):
the period while the animal remains alive.(動物還活著的時期)

v.動詞
1.  pass time in a leisurely manner(以悠閒的方式度過時光)
a diversion to while away the long afternoons(轉移到遠離下午的漫長的下午)

prep.介系詞
1. until:
father will be happy while dinner time(晚餐時間，父親會很開心)

關鍵用法
   when+過去簡單式 1, 過去簡單式 2 
1 表先發生的動作, 2 表後發生的動作 
Ex: When the phone rang, I went to answer it. 

**when+過去簡單式(突然性動作), 過去進行式(持續性動作) 
簡單式表插入的動作, 進行式表被該動作插入前正在進行中的動作 
Ex: When the phone rang, I was taking a shower(持續性動作). 

**while+過去進行式(持續性動作), 過去簡單式(突然性動作) 
Ex: While I was taking a shower, the phone rang. 
**while+過去進行式 1, 過去進行式 2 
表示兩個動作無先後問題, 同時在發生 
Ex: While I was studying at home, some people were fooling around outside.