Thermionic cathode
[电] 热离子阴极
🧩 词语组成解析
a. 热离子的\\n[电] 热离
cathode
[['kæθəud]]
n. 阴极\\n[化] 阴极
🗣️ 情景例句
But it is not polite to ask older people their age.
但问老人的年龄是不礼貌的。
What flights do you have from New York to London tomorrow?
明天从纽约飞往伦敦的有哪几班机？
But most probably it will all depend upon campers themselves:
但最重要的或许是露营者自己，