Free electrons
[电] 自由电子
🧩 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;
n. 电子( electron的复数形式 )
🗣️ 情景例句
He was carrying his son on his shoulders.l
他让儿子骑在肩上。
That is why we have asked you to come tonight.
这也就是我们今晚请你们来的原因。
The article began: 'Hundreds of steps lead to the high wall which surrounds the president's palace'.
“几百级台阶通向环绕总统的高墙。