打退堂鼓

To hit, strike, beat, or fight; to attack; to make a phone call or perform an action with an object; to inject; to remove; to emit; to make involuntary movements.

to move backward; to retreat or withdraw; to step back; to decline or reject; to resign from a position; to cancel or revoke

A large room or hall; a government office or ancestral hall; a specific room for a purpose; a term for paternal cousins; classifier for sets or lessons.

A drum; to beat a drum; to strike; to rouse or inspire; to bulge or swell.