Optron
光导发光元件
🗣️ 情景例句
I'm in the mood for soft serve ice cream.
我想吃现装雪糕。
What track does the Metroliner leave from?
华纽特快从第几轨道开出？
There is only enough spring water to supply the needs of the houses, so we have to pump from the river for farm use.
泉水只能满足家庭生活用水，因此我们必须从河里抽水以用于农业生产。