very careful
As a Chinese idiom, Pinyin is x ī t ì Ru ò L ì, which means to guard against fear day and night. If you are in danger, you dare not relax. From Yi Qian.
Idiom explanation
If: if; Li: danger. If you are in danger, you dare not relax.
Idiom usage
Used as a predicate, attributive, or adverbial; used in writing. I often fear that I will die in Vietnam and live up to my country's kindness. ——Chapter 73 of romance of the Three Kingdoms
The origin of Idioms
Yi · Qian: "a gentleman works hard all day long. He is vigilant at night. He has no fault."
very careful
a vast territory with a large population - guǎng tǔ zhòng mín