The water crisis facing us today sounds the alarm for us that we must economize on every drop of water, for the water resources are not inexhaustible.
今天面临的水危机给我们敲响了警钟：我们必须节约每一滴水，因为水资源不是取之不尽，用之不竭的。
Innovative wood technologies were used for the building structure to economize on the use of natural resources.
将木材用于建筑结构的技术创新表现，从而节约自然资源的使用。
Therefore, we must economize on energy resources.
因此，我们必须节约能源资源。
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