There are many idioms containing the word Xu, most of which have the meaning of expectation, wish and pride.
"Many" literally means "many"; Who also means that people from anywhere are also unknown people; Commitment to life and death, such as loyalty between men and women; Wishing to be an official refers to achieving illegitimate goals through fame and status; Mixed commitment means that everyone agrees with this answer; Many days are literal, indicating that there is still a lot of time; Strong feelings mean that like-minded people get along together.