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
Fortunately, I found his house at once.
很幸运地，我立刻找到他家。
What channel are you watching now?
现在你在看哪个新闻？
'My key,' I shouted.
“钥匙！”我喊道。