Breakdown of Не стоит выбрасывать чек: он может пригодиться.
Questions & Answers about Не стоит выбрасывать чек: он может пригодиться.
Не стоит выбрасывать… is an impersonal construction meaning “it’s not worth (doing)” / “you shouldn’t (do it)”.
There is no grammatical subject in Russian here; it’s like English “It’s not worth throwing away the receipt.”
With не стоит + infinitive, Russian often uses the imperfective to give general advice about an action as a type of behavior: “don’t go throwing it away / it’s not worth throwing away.”
Выбросить would sound more like a single, specific act (“don’t throw it away (this one time)”), and it’s less typical with не стоит in neutral advice.
Чек is direct object of выбрасывать, so it’s in the accusative.
For many masculine inanimate nouns like чек, accusative = nominative, so it looks unchanged: чек.