“激动得发狂似的”可以翻译为“be wildly/frenziedly/madly excited” 或者 “be in a frenzy of excitement” 。
例如:
He was wildly excited at the news. (听到这个消息,他激动得发狂似的。)
She was in a frenzy of excitement when she saw the surprise gift. (当她看到那份惊喜礼物时,激动得发狂似的 。)