Optron
光导发光元件
🗣️ 情景例句
You go ahead with the formalities. I'll see to the heavy luggage.
您先去办手续，我来帮您照看大件行李。
Cowards are cruel.
懦夫不仁。
Rastus leads an orderly life.
拉斯特斯生活很有规律，