" Poisonous toadstools don't change their spots, " said Ron sagely. " Anyway, I've always thought Dumbledore was cracked to trust Snape."

“毒蘑菇是不会改变它们的斑点的，”罗恩一针见血地说，“反正，我一直认为邓布利多真是疯了，居然相信斯内普。”