Many have been attempting to conservewater by irrigating less frequently or by switching to crops that require less water.
许多人试图通过减少灌溉频率或改种需水量更少的作物来节约用水。
2
These conditions favored the evolution of the structures that support the body, vessels that transport water and nutrients to all parts of plant, and structures that conservewater.
这些条件有助于进化出用于支撑枝干的结构、运输水分和养分到植物各部分的导管以及储存水分的结构。
3
But since 1980, the amount of water consumed per person has actually decreased, thanks to a range of new technologies that help to conservewater in homes and industry.