a letter of resignation

• 辞职信

a letter of resignation的用法和样例：

例句

1. He wrote his letter of resignation to the chairman.
   他向董事长写了辞职信。
2. You have released your letter publicly but I would prefer to keep this one private, in order to be able to respond candidly.
   你已把辞职信公诸于众，但我宁愿不公开此信，这样才能直言不讳。