butter wouldn't melt in one's mouth
成語所屬單字mouth
butter wouldn't melt in one's mouth — 慣用語
1. someone looks completely innocent and good-natured, but the expression is usuall
1.慣用語
釋義
裝出一副無辜的樣子
someone looks completely innocent and good-natured, but the expression is usually used when the person is actually sly or mischievous
例句
She looked at her mother with big eyes, as if butter would not melt in her mouth, right after she had broken the lamp.
Hui smiled sweetly at the teacher — butter would not melt in his mouth — though everyone knew he had started the fight.