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
It's quite likely that they'll agree to compromise.
他们很可能同意妥协。
If he doesn't pay him, I will.
如果他不，我将付给他。
You were very angry!
你火气真大！