Knudsen number
[化] 克努森数
🧩 词语组成解析
n. 努森（M·H·C, 1871-1949, 丹麦物理学家）
🗣️ 情景例句
Study hard kids, your mother and I want you to get into a good college when the time comes.
努力学习，孩子们，你们的妈妈和我希望你们能考上名校。
It hurts right here.
就这儿疼。
philosophers by selling wisdom and priests by selling spiritual comfort.
牧师靠卖精神安慰为生。