Sewer public的意思|示意

Concerns about public health led to the construction between 1876 and 1904 of three separate sewer systems to serve metropolitan Boston.

出于对公众健康的担忧，1876年至1904年期间，为了服务于波士顿市区，政府修建了三个独立的下水道系统。

A few blocks away, residents of the slum, which has no public water or sewer system, pay 3 shillings to fill used 20-liter cooking oil jugs with fresh water from a Coke-sponsored well.

几个街区远的地方是没有公共用水和下水道系统平民窟，居民们支付3先令从可口可乐公司赞助的井里购买20升的淡水，装在烹调油壶里。

The river water quality should further improve once more village houses are connected to the public sewer.

更多村屋接驳至公共污水渠，城门河水质可望进一步改善。

A lot of men do this almost subconsciously. Spitting is very crude and not too pretty to look at. Do not spit in public unless you want to look like you were raised in a sewer.

好多人无意识地这样做，吐痰是极其粗俗的，且不好看，不要在公开场面吐痰除非你让人觉得你没教养。