荜路蓝缕

Explanation: With the "arduous." Hard to describe entrepreneurship. Sima Guang Song, "and Wang Jiefu Wushan high": "rude rude if Ao, Fen take, Piper Road Lanlv empty hard." Huang Yuan-yung, "Hi Day Diary": "Lanlv by the time the pioneers, into the contact at the re-hee tired the period. "also for" Piper Lu Blue Trichosanthis. " "Shi Ji Chu family": "Xi I Yi kings of the provision in the Jingshan bear, blue Trichosanthis Piper exposed to at the wilderness." Thesaurus:  Arduous, live rough, Sleep thatch rest the head on lumps of clay, Cao Xing bivouac, Meal wind and rain, Canfengyinlu, regard the sky as a curtain,regard the earth as a mat, Mayuepifeng, Bivouac Wind meal, In(rags and) tatters wicker, bamboo Road, Wicker Road in(rags and) tatters, Bilulanlou, Bilulanlv, Bilulanlv