英语语法分析

Sanitation did not become widespread until the 19th century.

直到19世纪，卫生设施才开始普及。

The location is exceptionally poor, viewed from the sanitation point.

从卫生角度来看，这个地段非常糟糕。

《新英汉大辞典》

More than 80% of those cases can be attributed to contact with contaminated water and a lack of proper sanitation.

其中80%以上的病例可归因于接触了受污染的水和缺乏适当的卫生设施。