Electroluminor
电致发光磷光体
🗣️ 情景例句
What does your father do?
你父亲从事什么职业？
No pains, no gains.
不劳则无获。
He looked very well though he was rather thirsty, for he drank half a bottle of milk.
它看上去一切正常，只是口渴得很，喝了半瓶牛奶。