如果: if; in case; in the event of; supposing that 短语和例子如果这样 were this to happen ...; 如果不是他的话，我们就迷路了。 if it weren't for him, we would have gone astray. 如果她来的话，告诉我一声。 in case she comes, let me kn
如果知道: able enable unable ability capableact=to do to drive
