Pcss
n. 光电导半导体开关
🗣️ 情景例句
Oh, and Grandpa's baseball glove.
噢， 还有爷爷的棒球手套。
Please don't bother me now.I'm very busy.
现在请别麻烦我，我很忙的.
What do the machines do? asked Jim.
“这些机器做什么用？”吉姆问。