Trepanning
开[套]孔, 打眼, 穿孔(试验)
🗣️ 情景例句
Can you relay this to Mr. Li?
你能传话给李先生吗？
Is this a live program?
这是不是现场广播节目？
Because the equipment for adding sound to films had not yet been developed.
因为给电影配音的设备还没有研制出来。