Rg
abbr. 角速度陀螺仪（Rate Gyroscope）；巴西航空（Brazilian Airlines）
🗣️ 情景例句
Nowadays many TV programs need parental guidance.
现在许多电视节目需要在家长指导下观看。
One ploughs, another sow; who will reap no one knows.
有的耕，有的播，谁来收获很难说。
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。