Number of categories
分类数\\n[计] 分类数
🧩 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. 分类；类别（category的复数）
🗣️ 情景例句
I want to leave the phone number of the restaurant....
我要留餐厅的电话号码给她。
A true friend is one soul in two bodies.
真正的朋友好似两个身子长著一颗心。
Please sign here to show that you have received the money.
请在这儿签字以表明你已收到这笔钱。"