Free electron model
[化] 自由电子模型
🧩 词语组成解析
free
[fri]
adj. 自由的;免费的;免税的;空闲的;
adv. 免费地;自由地，无拘束地;一帆风顺地;
vt. 免除;释放;使自由;解救;
electron
[i'lektrɔn]
n. 电子;
🗣️ 情景例句
Let's plan an after-graduation trip!
让我们计划一次毕业后的旅行！
If this shirt doesn't fit,may I bring it back later?
如果这件衬衫不适合，我以后可以带回来换吗？
When a student recently saw two workmen using a pneumatic drill outside his university, he immediately telephoned the police and informed them that two students dressed up as workmen were tearing up the road with a pneumatic drill.
最近有个学生看见两个工人在学校门外用风钻干活，马上打电话报告警察，说有两个学生装扮成工人，正在用风钻破坏路面。