“oh， that’s easy， i found the egg was boiled， so when i pressed it against the desk， it didn’t break and let the egg white and yolk flow out. in fact， the egg did crack a little， but that didn’t matter， after all， it stood. ”
“thank you！ that was a fine explanation！ now attention， everyone. would you like to write down this experience as today’s composition？” so we did， and wrote excellent papers.
what an interesting lesson it was！