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1·Old people often try to economize on heating, thus endangering their health.

老年人常常想方设法节约用暖气，结果损害了他们的健康。《牛津词典》

2·We must economize on fuel.

我们必须节约燃料。《新英汉大辞典》

3·We must economize on water.

我们必须节约用水。

4·The power enterprises shall economize on water.

电力企业应当节约用水。

5·We should economize on all kinds of energy.

我们应该节约各种能源。

6·First, people are urged to economize on water.

首先，人们呼吁节约用水。

7·The power enterprises shall economize on water.

浪费用水可耻，节约用水光荣。

8·Therefore, we must economize on energy resources.

因此，我们必须节约能源资源。

9·This new machine will help economize on raw materials.

这台新机器将有助于节约原材料。

10·We must strictly economize on production and management expenses.

生产 费 管理费都要力求节约。

节约

1·We must economize on fuel.

我们必须节约燃料。《新英汉大辞典》

2·WHO is promoting vaccination strategies that economize on the use of antigens to address the current global shortage of influenza vaccines for epidemics and pandemics.

世界卫生组织正在积极推动能够节约抗原使用的免疫接种策略，以解决当前全球面临的在流感流行和大流行期间流感疫苗短缺的问题。

3·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。

4·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。

5·Therefore, we must economize on energy resources.

因此，我们必须节约能源资源。