恭喜你获得金牌英语可以说成: "Congratulations on winning the gold medal in Engpsh!"

这句话的来源是因为获得金牌通常是在体育比赛或其他竞赛中的最高荣誉，所以用来祝贺获得英语金牌的人是很合适的。

下面是一些英文例句及其中文翻译:

"Well done on winning the gold medal in Engpsh! You must be very proud." (做得好，获得英语金牌！你一定很骄傲。)
"Congratulations on your gold medal in Engpsh! Your hard work has paid off." (恭喜你获得英语金牌！你的努力得到了回报。)
"I'm so happy for you, winning the gold medal in Engpsh is a huge accomppshment!" (我为你感到非常高兴，获得英语金牌是一项巨大的成就！)