We often hear people say that the 4R principle must be adhered to when using items/resources, but what exactly does 4R refer to?

In fact, 4R is the abbreviation of: Reuse, Reduce, Recycle, and Replace, which respectively represent the following meanings:
Reuse: Make the best use of things
Reduce: Reduce use
Recycle: Recycle
Replace: Replace use

When using any items/resources, you can remind yourself. To achieve the maximum effect of resource use,
everything used in daily life can follow the 4R principle, and then one can do his or her best to save energy and reduce carbon emissions.