Sentence:  Using a large sponge to wet-sand drywall joints will definitely reduce dust, but <WSD>wet-sanding</WSD> isn't feasible for a project of any size because you must rinse the sponge and change the water continually. Also <WSD>wet-sanding</WSD> soaks the paper facing, sometimes dislodges the tape, and tends to round joint compound edges rather than taper them. 
Meaning of the word marked with <WSD> tags:  Smoothing damp material with a sponge.