This is the 2517th most frequent Chinese word.
每個
"Each" or "every."
The word '每個' is used as a pronoun to refer to 'each individual' within the group of students.
每個學生都應該努力學習。
Each student should study diligently.
Here, '每個' refers to 'each individual place' within the scope of locations visited by Dad.
爸爸每天早上都會散步，每個地方他都很熟悉。
Every morning, Dad goes for a walk, and he is familiar with every place.
In this sentence, '每個' is used to denote 'each individual person' in general terms.