听力保护装置价格低廉，并且易于获得。
Hearing protection is cheap and readily available at most pharmacies.
任何时候都戴好你的安全头盔和听力保护装置。
青少年要意识到这些音乐表演者在台上都佩戴一些听力保护装置。
It's important for teens to realize that most musical artists and performers wear some form of hearing protection while onstage.
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