The safety shield keeps you safe from bad people.

安全盾牌会保护你远离坏人。

You have all earned your own safety shields.

你们所有人都赢得了自己的安全盾牌。

It's my safety shield, I had to learn the safety lesson and take the safety quiz to get it.

这是我的安全盾牌，我得学习安全知识课并且回答安全知识问题才能拿到它。