The girl was very sad and cried. How to comfort her?

Be her listener. Everyone will be sad sometimes, usually because there are too many sad things hidden in their hearts.

Marriage is the main switch of family and society, and it is the cornerstone of children's growth and success. Marriage will involve many issues such as economy and personnel. Marriage will involve family planning and the main responsibility of raising children. A good marriage needs careful design, proceeding from reality and adjusting according to personal identity. It is also necessary to prevent marriage from losing its mind because of economic and opportunity problems, reducing its social function and leading to the deterioration of children's genetic personality.