Loud and clear - very clear and easy to understand
Law and order - a well organized society following rules
Black and white - clearly defined
More or less - approximately
Wear and tear - damage from regular use
Life and death - very serious and critical situation
Back and forth - moving in one direction and then the opposite repeatedly
Neat and tidy - clean nd organiszed
First and foremost - most important
Pros and cons - advantaages and disadvanttages
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