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San Francisco's Public Utilities Commission knows the exact co-ordinatesd of every waste-water pump, its maintenance history and the likelihood of it failing.

圣弗朗西斯科的公共事业委员会清楚每条废水管道的精确坐标，维修记录，和出现故障的可能性。

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They experience stress, waste time, and pay a lot for gas, car maintenance, and parking.

不仅神经高度紧张，浪费时间，还要为汽油、维修和泊车花一大笔钱。

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The work will be carried out by surveyors working for Enterprise Peterborough, an organisation contracted to provide a number of services to the council including waste collection, recycling and grounds maintenance.

BBC: Tree survey to cost Peterborough council almost ?3m

It covers building, waste management, decommissioning, operations and maintenance.

BBC: Nuclear power: UK will get help to compete, say ministers

Slow-growth shrubs are definitely low-maintenance plants, requiring less pruning and creating less yard waste.

CNN: X-rated yards save the environment