styrofoam

difficult / hard, probably impossible

material for making something such as food, web page, art, / material for writing a document

recycle

recycling

one thing

chemical recycling

first, initial / one-eyed

one-eyed goblin, a Japanese monster

“a hundred days of sermonizing, one fart” → a metaphor for how something that one has put great effort into can come to nothing after even a slight mistake, much as a hundred days of serious spiritual study can be lost to the winds