如果注射器没有消毒而被重复使用，可能会造成疾病的传播。
If syringes are reused without sterilisation, they can spread disease.
环保主义者抨击一家美国主要的航空公司称，其为了消毒而空飞跨越大西洋。
A major US airline has been attacked by environmental campaigners for flying empty planes across the Atlantic to be disinfected.
在邻近奥运会期间，主办城市因给简陋地区进行消毒而一直被指责。
Host cities have long been accused of sanitizing rough areas in the run-up to the Olympics.
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