The Centers for Disease Control and Prevention's recommendations also highlight the relationship between secondhand smoke exposure and some common ear infections.
疾病控制和预防中心也建议重视二手烟和一些常见的耳部感染之间的关系。
Ear infections are common in preschool children.
耳朵感染在学前儿童中很常见。
This is a common practice since longer ear lobes are seen as a sigh of beauty.
这是一种常见的做法,因为长耳垂被视为美丽的标志。
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