This sentence borrows the concept from China traditional culture and expresses a healthy, moral and modest attitude towards life. "Four or five often cover your body, how dare you hurt your body?" It means that you should cherish your health and take care of it like your parents. "Four-five normal" refers to the important organs and systems in the human body (such as heart, liver, spleen, lung, etc. ), and "respect but respect" means that these organs should be treated with respect and maintain their functions through correct eating habits, proper exercise and good lifestyle.