Never use a broom or a vacuum on a mercury spill because it will only scatter the mercury droplets, making them harder to find and pick up.
千万不要用扫帚或者吸尘器，因为这会使水银滴分散，使他们更加难以找到并清除。
He was stunned by the amount of effort involved in keeping a house clean with small boys to pick up after, and insisted that he and his wife shop for a new vacuum cleaner.
有了小男孩子们要跟在后边收拾，这让要保持一个家庭干净的劳动量另他震惊，于是坚持他和他的妻子去买一台新的吸尘器。
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