Formal theory
[计] 形式理论
🧩 词语组成解析
formal
['fɔ:məl]
adj. （学校教育或培训）正规的;方式上的;礼仪上的;
n. <美>须穿礼服的社交集会;<口>夜礼服;
🗣️ 情景例句
I didn't want to play charades,
我不想玩哑谜，
He who has lost his good name is a dead man among the living.
丧失好名誉，犹如活死人。
For once, Harry had to admit defeat.
哈里只好认输。