Although uncommon, severe allergic reactions, such as anaphylaxis or an exacerbation of asthma, are serious under the best of circumstances.

尽管是罕见的，但严重的敏感症反应，像过敏性反应或者恶化的哮喘即使在好的环境下也是十分严重的。

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The risks of receiving an infection from unsanitary tattooing equipment or irritating an allergy with tattoo pigments, although uncommon, are real.

不卫生的纹身器械或因纹身颜料引起的过敏症的风险，虽不普遍，但它是真实的存在。

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Supraorbital rim fractures, although uncommon, must be recognized and promptly referred to an oral and maxillofacial surgeon or other specialist skilled in the management of facial bone fractures.

眶上缘骨折，虽然罕见，必须承认并迅速提到了口腔颌面外科医生或其他专业技能的管理面骨骨折。

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Although an uncommon and largely unheard of term, the trend is one of the more recurrent vacation activities among tourists worldwide.

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"Although in the United Kingdom presently resistant organisms are uncommon, we're seeing an increasing trend which is a small one at the moment but in other countries throughout the world, the trend is much faster and that will eventually come here irrespective of the organism, " he warns.

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Although car rental companies now quote rates including taxes, sticker shock is not uncommon when you finally see that hotel or restaurant bill.

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