我们应尽量节约用水用电。
We should try to save water and electricity.
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在日常生活中，我们要节约用水用电，少用空调，多用节能灯。
In daily life, we should save water electricity, less with air conditioning, use energy-saving lamps.
节约用水、用电，不浪费材料。
No wasting of water, electricity, and raw materials.
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