Prolegomena
n. 前言, 绪论; 前言, 序论( prolegomenon的名词复数 )
🗣️ 情景例句
He knows everything about the production schedule,
他知道生产进度的一切情况，
Won't you buy me a newspaper on your way home?
回家的时候，替我买份报纸好不好？
Once the existence of this wave-length had been discovered,
一旦这种波长的实际存在被发现，