the sewage treatment facilities的用法和樣例：
例句
- The wastewater treatment system should be properly maintained.
污水處理設施必須妥善維修。 - Sewage treatment fees collected shall be used for the construction and operation of the facilities for central treatment of urban sewage and may not be used for other purposes.
收取的污水處理費用必須用于城市污水集中處理設施的建設和運行，不得挪作他用。
