if 英音：[if] 美音：[ɪf]
if
連接詞 conj.
1.(表示條件)如果
He will come if you invite him.
如果你請(qǐng)他,他會(huì)來的.
2.(表示虛擬)假如,要是
If I were you,I would never do that.
如果我是你,我決不做那件事.
3.(表示讓步)即使
We'll go even if it rains.
即使下雨我們也要去.
4.是否
I wonder if she is ill.
不知她是否病了.
5.(表示因果關(guān)系)每一次...的時(shí)候(總是會(huì))
If I feel any doubt,I inquire.
我一感到有疑問就隨時(shí)詢問.
名詞 n.
1.條件;設(shè)想[C]
There are too many ifs in his offer.
他的提議中條件太多了.
IF
=i.f.
if.
縮寫詞 abbr.
1.=information feedback 信息回饋
2.=interferon
3.=intermediate frequency 中頻
i.f.
縮寫詞 abbr.
1.=intermediate frequency 中頻
我查得字典 ,據(jù)我判斷屬于上面的因果關(guān)系