clean bill of health
01
a doctor's report stating that the patient is in good physical or mental health
例子
He's been given a clean bill of health by the doctor.
02
a statement indicating that something is safe and free of any defects or problems
Approving
Idiom例子
Despite accusations that the company was responsible for polluting the lake, it received a clean bill of health from the environmental agency after a thorough investigation.
