专家们说，手部消毒液必须至少有60%的酒精成分才能杀菌。
Experts say they must be at least 60% alcohol to kill germs.
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酒精，是用局部消毒，而且酒精的高度，至75%。
Alcohol, is used for topical disinfection, but also a high degree of alcohol, to 75%.
酒精可能是医学上的消毒剂。
Alcohol may be a medical disinfectant.
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