upper and lower level的用法和樣例：
例句
- The draft defines the tasks of the control organs and the relationship between higher and lower control commissions.
黨章草案規定了黨的監察機關的任務和監察委員會的上下級之間的關係。 - Historically, deviations have occurred in relations between higher and lower Party organizations.
在我們黨的歷史上，關於上下級關係問題，是曾經出現過偏向的。
