Zhànshìmen hùxiāng dǎ yǎnhù, chōng guò le dírén de fángxiàn.
The soldiers covered for each other and broke through the enemy's defense line.
Tips
usage
Originally a military term meaning to provide covering fire. Now widely used colloquially to mean covering for someone — lying on their behalf, creating a distraction, or helping them avoid trouble.