Circle of confusion
[医] 混乱圈(显示透镜理论上某点之圆盘)
🧩 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
It's a piece of cake.
这是小菜一碟。
I don't want to put you to any trouble.
我不想麻烦你。
Yes, he did.He telephoned at nine o'clock.
是的，打了。他在9点钟又打电话。