n. 前任 ≠ successor
n. 〔机器、系统等的〕前身 ≠ successor
The new BMW has a more powerful engine than its predecessor. 新款宝马的发动机比其前身动力更强劲。
The new president reversed many of the policies of his predecessor. 新任总统彻底改变了其前任的许多政策。
BrE /əˌbriːviˈeɪʃn/