The Lu family's youngest son has gone to college, but why are his parents and brothers so calm? They were worried when they went to a high school near their home. Why are they not worried at all when they go to Beijing University, which is thousands of miles away from home?
Dad said: Don't worry about Weng Yu.
Mom said: Why should we worry about Weng Yu?
The elder brother said: Well, Weng Yu is here.
The Lu family's child smashed:? ? ?