Recalling that painful experience, I don't mean four dishes, but corn steamed bread mixed with bran and corn flour. Sweet rice with bitter memories is usually referred to as bitter rice for short. It is an integral part of the past "recalling the bitter and thinking sweet" activities, mainly to prove the legitimacy of a happy life.

Remembering the bitter experience is to feel the social poverty before the founding of New China through virtual experience, and it is usually a multi-person activity, and the time is mostly in the Spring Festival, May 4th Youth Day, Children's Day and National Day. Even deliberately made the bitter sweet rice taste terrible. The moral is that the worse you taste, the more inspired you are, and the better you remember the bitter thoughts.