adj.節(jié)制的；規(guī)范的；禁止揮霍浪費(fèi)的（法令等）

What sumptuary advice do they offer? 他們會給出怎樣的節(jié)約建議呢？

The supply of urban water shall be subject to the principles of development of water supply, planned and sumptuary water. use. 城市供水應(yīng)當(dāng)以發(fā)展供水和計(jì)劃用水、節(jié)約用水為原則。