和谐英语

VOA慢速英语:One Billion Young People Risk Hearing Loss From Loud Music

2015-04-22来源:VOA
Words in This Story

irreversible – adj. impossible to change back to a previous condition or state

prolonged – adj. something that lasts or continues for a long time

habitual – adj. doing something regularly or repeatedly

decibel – n. a unit for measuring how loud a sound is