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
To help scrub the building interior clean.
帮忙把建筑的内部擦洗干 。
Did you have a good flight?
你旅途愉快吗？
Before long, biscuits of all shapes and sizes began arriving at the factory.
不久，形状各异，大小不一的饼干陆续送到工厂。