A:Our philosophy teacher is very humorous.
我們的哲學教師很幽默。
B:I usually have the wrong notion that he's very serious.
我總以為他很嚴肅。
A:No,not at all.The examples he gives are very interesing.
不,一點也不。他的例子非常有意思。
B:No wonder when I pass your room,I always hear your laughter.
怪不得我每次經過你們教室都聽見笑聲呢。