副词
1. （用于陈述认为听者已经知道的事）显然地，无疑地
You use obviously when you are stating something that you expect the person who is listening to know already.
2. 明显地;显而易见地
You use obviously to indicate that something is easily noticed, seen, or recognized.
1. unmistakably (`plain' is often used informally for `plainly')
e.g. the answer is obviously wrong
she was in bed and evidently in great pain
he was manifestly too important to leave off the guest list
it is all patently nonsense
she has apparently been living here for some time
I thought he owned the property, but apparently not
You are plainly wrong
he is plain stubborn