Optron
光导发光元件
🗣️ 情景例句
They know that I'm married and that I have a family.
他们知道我结婚了， 有一个家。
I went to see my doctor for a check-up yesterday.
我昨天为检查去看了医生。
I'm tired, said my younger brother as he climbed up to join me.
“我累了，”我弟弟边说边爬上岩石和我汇合。