to forget about one 's own
Desperate, Chinese idiom, Pinyin is f è Nb ù g ù m ì ng, meaning desperate. It comes from the book of Wei, the emperor of Wei.
The origin of Idioms
"Wei Chu Di Ji" in the book of Wei: "either sacrifice for the day and give thanks, regardless of one's life; or face the enemy in the army, go to the disaster as if to return home."
Idiom usage
In the Southern Dynasty, Liang Ren Fang's "playing Cao Jingzong" said: "therefore, the governor of Sizhou, Cai Daogong, led his courage and bravery and risked his life."
to forget about one 's own
The fog is rising and the clouds are surging - wù xīng yún yǒng
have one 's own way of doing things - zì zuò zhǔ zhāng
learn about customs and habits of the country one goes to - rù guó wèn sú