State of knowledge
[计] 知识状态
🧩 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];
🗣️ 情景例句
she's still alone, without her family.
她仍是孤单单的，找不到家。
You'd better go at once, hadn't you?
你最好马上走，不对吗？
My sister is only seven, but she always tells me whether my pictures are good or not.
我的妹妹只有7岁，但她总能说出我的画是好还是坏。