people are hurrying to and fro
Chinese idiom, Pinyin is d ō NGL á IX ī Q ù, which means coming from the East and going to the West. It describes people who come and go and don't know each other. It's from Guan Men Liu.
The origin of Idioms
Li Shangyin, Tang Dynasty, wrote in Guanmen Liu: "it's hard for people to come and go from east to west. It's not to reduce the dust on the road for Qingyang."
Discrimination of words
It's not easy to sell or buy on the bridge. The twenty third volume of Yu Shi Ming Yan by Feng Menglong in Ming Dynasty
people are hurrying to and fro
The accumulated soil is the mountain, and the accumulated water is the sea - jī shuǐ wéi shān,jī shuǐ wéi hǎi
There is a balance between advance and retreat - jìn tuì yǒu jié
guessed what was happening but did not know what was really taking place - zhuō mō bù dìng