英语里有 a feather in your cap 。
::《牛津高阶英汉双解词典》(第 8 版)
a ˈfeather in your cap an action that you can be proud of 可引以自豪的行为 ETYMOLOGY
This idiom comes from the Native American custom of giving a feather to sb who had been very brave in battle. 此习语源自美国土著的风俗,把一根羽毛奖赏给在战斗中表现英勇的人。