Freak out means lose emotional control, but it's more flexible. You can freak out because of excitement. For example, I freaked out when I saw my favourite pop star on the street or because you're nervous. I freaked out when I was doing a presentation on the stage.
抓狂意味著情緒失控,但更靈活。你可以因為興奮而抓狂。例如,我在街上看到我最喜歡的歌星時就會抓狂,或者因為你緊張。我在臺上做演講時就嚇壞了。