Skitron
暗迹(示波)管, 阴[黑]影管(一种 Ｘ光管)
🗣️ 情景例句
Oh, well, really ...
噢 哦 真的……
It's nothing. Don't mention it.
区区小事，何足挂齿。
The boys felt tired so they put out the fire and crept into their tent.
于是他们扑灭了篝火，钻进了帐篷。