Day by day
The Chinese idiom, J ì R ì zh ǐ Q ī, means counting the number of days to estimate the journey and arrival time. It's from the record of making up Annam's different records by Cui Zhiyuan of Tang Dynasty.
Idiom usage
As a predicate or adverbial; of an estimated date
The origin of Idioms
Cui Zhiyuan of the Tang Dynasty wrote in his book the records of Annam: once there was no tinghou, don't judge Tu Cheng, those who walked on the road pointed to the time, those who went up and down took up the wind and believed
Idiom explanation
Counting the number of days to estimate the journey and arrival time.
Day by day
too weak to bear the weight of one 's clothes - rú bù shèng yī