为什么be interested in,be excited at

为什么be interested in,be excited at be excited about和be interested in 的区别 be interested in 和be interested at 有什么不一样? 短语be interested in 为什么是be interested in而不是interested in be interesed in和be interested at ,解释一下,详细! be interested in为什么加doing 英语翻译是be interesting at 还是be interested at,get interested in还 be interested in 和be interested with.. be excited at the news 介词为什么用 at be interested in be very interested in 有没有be excited in?about ,at不是吗