筚路蓝缕
bìlù-lánlǚTraditional 篳路藍縷
to endure great hardship in pioneering work
Every meaning
bìlù-lánlǚ
- to endure great hardship in pioneering work
Its characters
Words with 路
Words with 蓝
Meanings from our own dictionary. Chengyu from the Xinhua idiom list, the most common first.