red carpet

Từ điển Oxford Advanced Learner 8th

ˌred ˈcarpet [red carpet] BrE NAmE (usually the red carpet) noun singular
a strip of red carpet laid on the ground for an important visitor to walk on when he or she arrives
•I didn't expect to be given the red carpet treatment!

Example Bank:
•They city always rolls out the red carpet for visiting heads of state.