one-shot
adjective🔊/ˈwʌn ʃɒt/
🔊/ˈwʌn ʃɑːt/
(North American English) (British English one-off)
[only before noun]made or happening only once and not regularly 一次性的；非经常性的 It was supposed to be a one-shot deal but it was so successful the band signed up for a tour. 这本来应该是一次性的交易，但乐队签约巡演非常成功。