IFEn.内场致放射
ifconj.是否;如果;即使;每当n.条件;设想
If device has a queue如果设备有一个队列
If Heaven Is There II
If it was a Scotchman苏格兰人
If yo like hot dishes您要是爱吃辣
if/where applicable如果适用
If You Love Her Enough
If I ever catch him.我要是抓到他的话, 哼(就决不饶他)!
if one's ship comes in
IF quadrature sampling中频正交采样
if the occasion arises必要的时候