baijin
1. dust and soot; particulate matter
Noun
#143595
1. dust and soot; particulate matter
1. Probably coal dust.; It will likely be coal dust.
1. Coal dust.; (Polite form)
1. Wasn't coal dust.; Was not coal dust.
1. Not coal dust.
1. It is not coal dust.; It's not coal dust.
1. If coal dust; When coal dust
1. Was coal dust.
1. It was not coal dust.
1. It was not coal dust.