3. Persevere, don't bow to evil forces, and tell us that even if we encounter great difficulties and dangerous violence, we must face them firmly, and no matter how bad the result is, we can't bend our straight spine to them.
4. She, a silent teacher
Stick it on the wall quietly.
Not known to the public
perhaps
A piece of chalk will leave a deep gap in her face.
but
Even though it's always dusty.
Her life has been dedicated to your life.