N-VOC
（对高级官员的尊称）阁下
You use expressions such as Your Excellency or His Excellency when you are addressing or referring to officials of very high rank, for example ambassadors or governors.
例句
I am reluctant to trust anyone totally, Your Excellency...
我不想完全相信任何人，阁下。
His excellency the President will be waiting for you in the hall.
总统阁下会在大厅等你。