Correct

课时

/ kèshí / 
Strokes

Definition

class/period

Example

As a Noun

class/lesson hour; period

1
Wǒmen
我们
měizhōu
每周
zhīyǒu
只有
liǎng
两
kèshí
课时
de
的
Éyǔ
俄语
  
。

We only have two class hours/periods for Russian every week.