Quantity of documents
[计] 文件数量
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
n. 文档（document的复数形式）
🗣️ 情景例句
My patients--mostly kids--
我的病人， 大多数是孩子们
How many pounds are you going to order?
你要订几磅？
Both the police and the workmen were grateful to the student for this piece of advance information.
警察与工人都对那个学生事先通报情况表示感谢。