sewer needed
下水道需要
以上为机器翻译结果，长、整句建议使用 人工翻译 。
But water companies needed to invest in the sewer network to ensure untreated waste water was only released in urgent cases.
BBC: Charity warning over raw sewage discharge levels
So, for example, we've got more road projects going on here in Wisconsin and around the country than at any time since -- (applause) -- road projects, sewer projects, a whole bunch of deferred stuff that needed to be done.
WHITEHOUSE: Town Hall Meeting on the Economy
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