You can think that: 礼记 ＝ The book about manner
So I explain your question as:
As a child,you should be:
晨必先起 必盥必漱:Get up from bed earlier than your parents, and must to clean yourself (,after that you can see your parents) in the morning。
昏定晨省: Welcome them in the front of gate when parents get back from work in the evening.And wish good health to them in the morning.
冬溫夏凊:Make them feel warm in the winter,and let them feel cool in the summer.
(Generally,revere your parents and make them feel comfortable in daily life)
父母有疾 憂而謀瘳:When parents get ill,you should think about their's condition and try to find the way how they can be cured.
對案不食 思得良饌:When you have dinner with your parents,don't sit where face to them.And if you have to sit there,don't eat anything.(But how can you repress your hungry?)Just fancy you had ate a very sumptuous dinner
P.S.:Your questions look like from sajasohak,a korean enlightenment education book.