a hot potato
一個棘手的問題或情況，難以處理或回避
口語·形容敏感或棘手的問題
英文釋義
a controversial or sensitive issue that is difficult to handle or solve
例句
The tax reform is a hot potato that politicians avoid discussing.
典故來源
源自燙手山芋，拿不住又放不下，比喻棘手且易引發(fā)爭議的問題。