公开选拔的英文：
the supervision of appointment and promotion of officials

supervision是什么意思：
n. 监督，管理

To relay any customer complaints to supervis.
处理并向主管汇报客人的投诉。

She was charged with the supervision of the proofreaders.
她被迫承担校对员的监督责任。

Who is supervising him?
谁在监督他？

appointment是什么意思：
n. 任命；职位；约会

to cancel an appointment
取消约会

Appointments can be made by arrangement.
约见时间可以商定解决。

He will only see you by appointment.
只有事先约好他才能接见你。

promotion是什么意思：
n. 提升；晋级；促进；发扬；推销

And the show will help promote it.
而这次展览会有利于促销它。

He is to promote by a presidential order.
他即将按主管策令升职。

He was promoted to manager.
他被提升为经理。