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
It's mostly young people who take part.
参加活动的绝大多数是年青人。
The wire has got crossed.
电话串线了。
Of course, New York is the ideal place for such an interesting study, because there is no shortage of tall buildings.
当然，纽约是进行这种有趣的试验的一个理想的地方，因为那里根本不缺乏高楼大厦，有的是高层的窗槛从上往下坠落。