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
Which tourist attractions are the best?
哪一个旅游景点最好？
Do you think you could keep the noise down?
你看能不能小声一些？
Can you spell it, please?
请您拼出来好吗？