日夜兼程
rìyè-jiānchéng
to travel day and night
Every meaning
rìyè-jiānchéng
- to travel day and night
Its characters
- 日rìday
- 夜yènight; evening
- 兼jiānto hold concurrently; and also (as in 兼职)
- 程chéngjourney; distance (as in 路程)
Words with 日
Words with 夜
Meanings from our own dictionary. Chengyu from the Xinhua idiom list, the most common first.