one-shot

名词 one-shot:

1. a charge of ammunition for a single shot
   同义词：round, unit of ammunition, one shot

one-shot

adj.Informal （形容词）【非正式用语】
Becoming effective after only one attempt:
一次完成的：要稍微努力就出效果的：
例句：
looked for a one-shot solution to the problem.
寻找最快捷的解题方法

Being the only one and unlikely to be repeated:
独一无二的：
例句：
The funding was a one-shot deal.
这次投资是一笔无法比拟的赌注