like brothers
Hand is foot, Pinyin is R ú sh ǒ ur ú Z ú, is a Chinese word, meaning to compare the feelings of brothers.
explain
Brothers: brothers. It refers to the feelings of brothers.
source
"Who has no brothers is like a foot and a hand," said Li Hua of Tang Dynasty
like brothers
Run counter to public interests - bèi gōng yíng sī
to borrow sth. to make a gift of it - jiè huā xiàn fó