This is the 3283rd most frequent Chinese word.
各個
"各個" means "each" or "every individual."
The phrase "各個" denotes "each and every" emphasizing every individual student in the group.
各個學生都非常用功。
Every student works very hard.
"各個" is used to specify "each individual course," highlighting the diversity of teaching methods applied to different courses.
她嘗試用不同的方法教各個課程。
She tries to use different methods to teach each course.
Here, "各個" identifies "each individual issue," focusing on analyzing them one at a time.