青云翻译

　　Prepare a pump: in the Office a hydrogen balloon with a mean drum weekly dust in the air blowing out of the keyboard can be used to avoid accumulation.

　　Prepares an air pump: Puts one on the office the small air pump which hits the balloon to use, each week may use the air pump to blow out in the keyboard the dust, avoids piling up.

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　　Prepare a pump: in the Office a hydrogen balloon with a mean drum weekly dust in the air blowing out of the keyboard can be used to avoid accumulation.