大卫在数学竞赛中获得一等奖，因此我们为他感到非常自豪。的翻译：David won the first prize in the mathematics competition, so we are very proud for him. 什么意思？中文翻译英文，英文翻译中文，怎么说？

青云英语翻译

David won the first prize in the mathematics competition, so we are very proud for him.

正在翻译，请等待...

David was in a math contest for the prize, so we are very proud of him.

David won the first prize in the mathematics competition, so we are very proud for him.