吸尘室,超低温工业冷冻机。
按照吸尘机使用方法正确的清洁办公室地毯。
Clean the carpet of office area correctly according to the usage of vacuum cleaner.
有一次我们要在展示前清扫实验室,我弄了个吸尘器亲自清扫。
So when we need to vacuum the lab before a demo, I bring in the vacuum cleaner and I vacuum it.
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