book down的用法和樣例：
例句
- I finally ran the book down in the university library.
我終於在大學圖書館找到了那本書。 - Every sum of money paid or received must be booked down immediately.
每筆付出或收進的款子都必須立即登記。 - He tossed the book down on the table.
他把書扔在桌子上。 - A clerk booked down details of every article handed in.
一個職員把交進來的每一件東西詳細登記下來。
