These limited-edition sneakers sold out the moment they hit the shelves.
Tips
usage
Often appears as a sign on shop windows or e-commerce listings: 已售完 (yǐ shòuwán, 'already sold out'). Synonym 卖完 (màiwán) is more colloquial; 售罄 (shòuqìng) is more formal/literary.
memory
售 'to sell' + 完 'finished' — the result complement 完 marks the action as completely done. Same pattern as 看完 (finish reading), 吃完 (finish eating).