Radiotron
真空管, 三极电子管
🗣️ 情景例句
There's been another scandal in the Royal family.
皇室又出丑闻了。
Nothing comes out of the sack but what was in it.
无风不起浪。
The woman immediately behind the two cars happened to be a learner.
紧跟其后的一辆车上的司机碰巧是个初学者，