My knees are as iron as iron
My knee is like iron. It is a Chinese idiom. Its pinyin is w ú x ī R ú Ti ě, which means that it is a metaphor for being strong and unyielding. It comes from the biography of Li Qi in Yuan history.
The origin of Idioms
Biography of Li Qi in the history of Yuan Dynasty: "my knees are as iron as iron. How can I bend for thieves?"
Idiom explanation
It refers to being strong and unyielding.
My knees are as iron as iron
Drinking Valley and perching Hill - yǐn gǔ qī qiū
heart startling and gallbladder trembling -- be deeply - xīn jīng dǎn zhàn
a few isolated words and phrases - piàn yán zhǐ yǔ
flay the face and wash the heart - gé miàn quān xīn