Free neutron
[电] 自由中子
🧩 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;
🗣️ 情景例句
We were married almost fifty years.
我们结婚将近五十年。
Sounds like fun.
听起来很有趣。
I want a dress like that one, but it must be my size.
我想一件和那件一样的，但必须是我的尺寸。