1. ear protection：ear defender 护耳器 | ear protection 护耳 | ear protector 护耳器
2. 护耳
2. earmuffs：earmu ==> 护耳 | earmuffs ==> 护耳 | earn foreign exchange ==> 附加值高
3. earmu：earmarking of taxes ==> 税款专用 | earmu ==> 护耳 | earmuffs ==> 护耳
4. 护耳在线翻译
4. earmuearmuffs：earmarking 打耳标 | earmuearmuffs 护耳 | earmuff 御寒耳罩