According to Dr. Steven D. Rauch, a professor of otolaryngology at Harvard, there are four major areas for concern: ear hygiene, noise injuries, age-related hearing loss and ear health emergencies.
哈佛大学耳鼻喉科教授斯蒂文·D·劳赫指出，有四点需要予以关注：耳部卫生、噪音伤害、与年龄有关的听力损失，以及突发性的耳部健康事件。
D ear friends, I am pleased to meet you through cyberspace.
亲爱的朋友，我很高兴能通过网络空间与你会面。
D ear friends, I am pleased to meet you through cyberspace.
亲爱的朋友，我很高兴能通过网络空间与你会面。
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