Yóudìyuán báshānshèshuǐ, bǎ xìn sòngdào piānyuǎn de cūnzhuāng.
The postal carrier crossed mountains and streams to deliver letters to remote villages.
Tips
history
Roots in 《诗经·鄘风·载驰》 (大夫跋涉，我心则忧) and 《左传·襄公二十八年》 (跋山涉水，蒙犯霜露). The full four-character form is the Zuozhuan version, describing diplomatic missions through wilderness.
usage
Implies hardship and dedication, not just travel. Often used about scientists, surveyors, mail carriers, soldiers - people whose work demands traversing rough country.
