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 don't want my tonsils out.
我不想切除扁桃腺。
Fifty-litre carboy would be the most economical size. Carboys may be retained without charge for two months.
50升的瓶子应是最经济的尺码，这些瓶子可免费保存两个月。
How Harry managed to keep a straight face during these performances is quite beyond me.
我实在想像不出哈里在这些表演中是怎样装出一本正经的样子的。