I could hear little noises, water running, toilet flushing.

我可以依稀听到些嘈杂的声音，水流声，冲厕所的声音。

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Rainwater harvesting is used for toilet flushing, laundry and landscape irrigation.

雨水收集用于冲洗厕所、洗衣和景观灌溉。

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A split-second later there was an asthmatic cough and the sound of a toilet flushing.

接著传来一阵哮喘患者的咳嗽声和厕所里的冲水声。

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Wastewater from sinks and showers will be recycled for irrigation and toilet flushing, requiring two sets of pressurized waterlines in each apartment and office.

FORBES: Magazine Article

But toilet flushing is allowed.

CNN: Feds, locals out of sync on repopulation

The enhanced sounds were a little too similar to that of a flushing toilet.

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