The lack of water caused not only personal inconvenience and business paralysis, but it occasioned real danger of disease through unflushed sewers and insufficiently drained pipes. 伯莎M.克拉克.科学通论.
They want to explore the sewers, and he's the wizard rat that swims ahead. 戴维·赫伯特·劳伦斯.恋爱中的女人.
The foul, bad-smelling gases which arise from sewers can be prevented from escaping and passing to streets and buildings by placing charcoal filters at the sewer exits. 伯莎M.克拉克.科学通论.
Notwithstanding the success of his machine, which on public exhibition beat five of the swiftest hand sewers, he met only discouragement and disappointment. Edward W. Byrn.十九世纪发明进展.
Charcoal is porous and absorbs foul gases, and thus keeps the region surrounding sewers sweet and clean and free of odor. 伯莎M.克拉克.科学通论.
Sewers and water pipes were laid throughout the city, resulting in a great reduction of disease. 佚名.神奇的知识之书.