因此，我们必须节约能源资源。

Therefore, we must economize on energy resources.

youdao

我们要学会节约能源，降低耗费，珍惜资源！

We should learn to save energy, reduce cost, cherish resources!

youdao

取得节约能源和人力资源的良好效益。

Save energy and human resources to obtain good results.

youdao

减少排放和节约能源和水资源，从我自己做起。

Reducing emission and save energy and water from myself.

youdao

减少排放和节约能源和水资源，从我自己做起。

Reducing emission and save energy and water from myself.

youdao