Phosphorometer
磷光计
🗣️ 情景例句
Bon Voyage!
旅途愉快！
The world is a ladder for some to go up and others to go down.
世界好似一把梯，有人上去有人下。
'And you didn't notice anything unusual?'
“您没有注意到有什么异常情况发生吗？”