英文成語
The leopard can’t change his spots 江山易改，本性難移
Bobby is too keen on model collection, though he has promised his wife not to spend too much on this hobby, the leopard can't change his spots. He spent all his spare money on it again this month.
Bobby實在太喜歡收集模型了，就算答應了妻子不要花太多錢在這興趣上，但江山易改，本性難移，他今個月又將所有的錢花來買模型了。
（圖片源自互聯網）
