Libraries
n. 图书馆查询系统；函数库；图书馆（library的复数）
🗣️ 情景例句
My boss does everything by the book.
我们老板一切照章办事。
Do one's level best.
尽力而为。
She didn't visit her step-mother much, though I believe that they used to speak on the phone from time to time.
她不常看望她的继母，虽然，我相信她们过去时不进在电话里聊一聊。