Diabolology
n. 魔鬼學, 魔鬼研究
??? 情景例句
Keep your nose to the grindstone; you'll succeed.
埋頭苦干，總有成功的一天。
No garden without its weeds.
有利必有弊。
The students followed Uncle Wang to see the other machine.
學生們跟著王大叔去看另一部機器。