Audion
n. [电子]三极管
🗣️ 情景例句
You got it.
答对了。
The war threatened his well-being.
战争威胁他的幸福。
On the B.B.C. you can hear the clock when it is actually striking because microphones are connected to the clock tower.
当大钟打点的时候，你可以从英国广播公司的广播中听到，因为钟塔上接了麦克风。