Skitron
暗迹(示波)管, 阴[黑]影管(一种 Ｘ光管)
🗣️ 情景例句
They are indifferent to politics.
他们对政治漠不关心。
He concentrated solely on law studies.
他把全部精力只用于攻读法律。
No, thanks. It's big, but it isn't heavy. It's light.
不用了，谢谢，是大盒子，但不重。很轻。