banana skin直译是“香蕉皮”，真实含义是使人出丑的突发事件，令人尴尬的错误，出洋相。

【例句】
Trying to keep the story out of the newspapers turned out to be another banana skin for the prime minister.
首相企图阻止报界报道这件事，结果却使自己出了洋相。

The new tax has proved to be a banana skin for the government.
事实证明，新税收给政府带来了麻烦。