两人都戴着安全帽和护耳垫。
医生们认为它可有助于保护耳朵免遭感染。
Doctors think it might also help protect against infections.
戴上耳塞或者护耳器等保护措施可以防止耳鸣。
For tinnitus, protection like ear plugs or ear defenders help.
没有公众的关注，保护耳朵并不是那么的顺利。
Without the concern of public, ear protection doesn't go very well.
它们也很安全，可以保护耳朵避免声音过大而受损。
And they're really safe. They'll protect your ear from sound damage.
操作液压锤时，须佩戴护耳、护目和呼吸保护设备。
When operating the breaker you must use ear protection, eye protection, and breathing protection.
比利︰它们也很安全，可以保护耳朵避免声音过大而受损。
Billy: And they're really safe. They'll protect your ear from sound damage.
比利︰它们也很安全，可以保护耳朵避免声音过大而受损。
Billy: And they're really safe. They'll protect your ear from sound damage.
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