Library science
n. 图书馆（管理）学
🧩 词语组成解析
🗣️ 情景例句
Service like this deserves a really good tip.
这样的服务值得拿优厚的小费。
The worst is yet to come.
最糟的还不只这样。
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。