Formal argument
[计] 形式变元
🧩 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
Oh! Oh, quickly! Go, go, go!
噢， 噢， 赶快 ！走 ，走，走！
Don't be offended by his haste, he is a very busy man.
别为他的轻率介意，他是个大忙人。
She's been there for two months. She's been there since September.
她进校有两个月了。她自9月份起便在那儿学习了。