Lenard tube
[电] Lenard管
🧩 词语组成解析
雷纳德(①姓氏 ②Philipp, 1862-1947, 德国物理学家, 曾获 1905年诺贝尔物理 学奖)
🗣️ 情景例句
He lost his money due to his own carelessness.
由于大意，他丢了钱。
To speed away
快速离开
4 Think of a time when you were happiest. What were you doing?
4。想一想你感到最高兴的时刻。当时你在做什么？