Library science
n. 图书馆（管理）学
🧩 词语组成解析
🗣️ 情景例句
Don't you want something to eat?
您想吃点什么吗？
Better safe than sorry.
小心不出大错。
While the battered car was moving away, Roy stopped his bus and telephoned the police.
当那辆被撞坏的车开走后，罗伊停下车，给警察挂了电话。