1 sentence for 最先 (zuì​xiān — at first)

1. 一旦决定辞职，你最先应该告诉的人就是你的领导。

   yī​dàn jué​dìng cí zhí, nǐ zuì​xiān yīng​gāi gào​sù de rén jiù​shì nǐ de lǐng​dǎo.

   Once you’ve decided to resign, the first person you should tell is your manager.

   Source: CCMatrix