From his words and behavior I know that he's a know-it-all fellow.
From his words and behavior I know that he's a know-it-all fellow.
从他的言行，我知道他是个不学无术喜欢吹牛皮的家伙。
From his words and behavior I know that he's a know-it-all fellow.
从他的言行，我知道他是个不学无术喜欢吹牛皮的家伙。