English Idioms About “General”
Idiom: Wait and see
Meaning: To wait to see what will occur after.
Example: The new manager hasn’t announced his new plan yet. We’ll have to wait and see.

English Idioms About “Science”
Idiom: Cog in the machine
Meaning: (Also a cog in the wheel) said about one part of a large system or organization
Example: He was just an important cog in the machine of organized crime.

English Idioms About “Animals”
Idiom: Neither fish nor fowl
Meaning: Said of something not easily categorized or not fitting neatly into any established group.
Example: I can’t see what you want to say. Your proposal is neither fish nor fowl.