Three-electron bond
[机] 三电子键
🧩 词语组成解析
three
[θri]
num. 三;三个;第三（章，页等）;
n. 三岁;三个人[东西];三，三个;
adj. 三的;三个的;
electron
[i'lektrɔn]
n. 电子;
🗣️ 情景例句
What else?
还有什么？
Soon up, soon down.
升得高，落得快。
The petrol had nearly all been used up.
汽油几乎已经用光。