Postface
n. 刊后语
🗣️ 情景例句
Oh, good.
噢， 好了。
The devil lurks behind the cross.
貌善实恶。
It was from the study of these that so much was learnt about the interior of the earth.
正是从这两种波的研究中，我们可以了解到地球内部的许多情况。