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
Is there anyone present who can show
在座可有人能提出
Generally speaking, it's cheaper but slower to ship goods by sea than by rail.
总的来说，海运比铁路运输更便宜，但速度慢一些。
They come in cases of five.
它们是五个一箱。