一节

one class or lesson

→ 一
phrase Rare #27,645
one class or lesson 一 is “one,” and 节 is a measure word commonly used for classes and lessons. 节 can also refer to a section or segment.
CH: 我今天有一节中文课。
EN: I have one Chinese class today.

我还有一节音乐课

I still have one more music class.

— 两生花 (1991)

下一节

Next section

— 海德尔 (2014)

不过是一节手指

It's only one knuckle of a finger.

— 生吃 (2017)