死鸭子嘴硬”表示一个人很固执。大家都觉得他是错的,他却不承认自己是错的。
sǐyāzizuǐyìng ”biǎoshì yī ge rén hěn gùzhí 。dàjiā dōu juéde tā shì cuò de ,tā què bù chéngrèn zìjǐ shì cuò de 。
“A dead duck’s mouth is hard.” means the person is stubborn to a fault. Everyone thinks he is wrong, but he doesn’t admit it.