二等奖用英语怎么说

二等奖用英语说作 second prize。

该词的来源来自英文的 "second"，意为 "第二"，以及 "prize"，意为 "奖品"。

例句：

I was so happy to hear that I had won second prize in the science fair.

The second prize in the contest was a trip to Disney World.