Thirty rivers and things. The years are getting better. Don't sigh that fate is too cruel. You will pass the exam and come back.

It means: the tables have turned, and now is your lucky moment. Don't think the old days are too depressing, you will soon have a good life.

If it is an engagement, it means that the family should be happy.

If you apply for an academic visa, it means that you will be among the best in the exam.

If you apply for a work visa, it means that you want to be promoted.