Thermionic activity
[化] 热离子活度
🧩 词语组成解析
a. 热离子的\\n[电] 热离
🗣️ 情景例句
I feel as though I have been standing here for 50 days.
可我感觉像是在这里站了50天。
Life is short and time is fleeting.
人生短暂，光阴易逝。
When did you last go to the seaside?
你上一次是什么时候去海滨的？