Xuéxiào měi xuéqī dōu jìnxíng yí cì jǐnjí shūsàn yǎnxí.
The school holds an emergency evacuation drill every semester.
Tips
usage
Standard term in safety signage and drills. 疏散 alone means 'to disperse / scatter (a crowd)'; adding 紧急 specifies it's an urgent, evacuation context. 紧急疏散通道 = emergency exit route.
