Formal bond
[化] 形式键(在式中理论上可写出而实际上太远的键)
🧩 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
That naughty boy seems to tell his family too many lies.
这个顽皮的小男孩似乎对家人说了很多谎。
Why don't you bring Sarah and Kathy with you?
你能把莎拉和凯茜一起带来吗？
Well, we can't take Polly with us. Could you look after her for me while we're away?
嗯，我们不带波利去。我们不在这里时，您能帮我照料它吗？