Electroluminor
电致发光磷光体
🗣️ 情景例句
The patient showed a marked improvement.
病人病情显著好转。
I am sorry Mr. Chen is unavailable, would you like to speak to anyone else?
抱歉陈先生不在，你要不要跟其他人讲话？
Will you time me?
你给我计时好吗？