Phosphorogen
磷光激活剂; 磷光增强剂
🗣️ 情景例句
Anytime. It's really easy, but, like anything,
没问题。实在很容易 但是 和其它东西一样
Boy Scouts serve the community.
童子军服务社区。
You can never turn the clock back.
时光不能倒流。