Knudsen
n. 努森（M·H·C, 1871-1949, 丹麦物理学家）
🗣️ 情景例句
Good-bye.
再见。
He deserves not the sweet that will not taste the sour.
吃过苦头，才配享受。
How long did it take you to accomplish this complicated job?
你花了多久才作完这复杂的活儿？