Pcr
abbr. 光电导继电器（Photo-conductive Relay）；程序控制暂存器（program control register）
🗣️ 情景例句
Where there's smoke, there's fire.
事出必有因，无风不起浪。
The spoon is dirty, Would you bring me a clean one, please?
这汤勺是脏的，请你拿个干净的给我。
I'll be back soon.
我马上回来。