Thermionic vacuum tube
热离子真空管
🧩 词语组成解析
a. 热离子的\\n[电] 热离
🗣️ 情景例句
The weather's been very hot lately.
最近天气总是很热。
I will happily admit that I am as nervous as a cat on a hot roof.
我承认现在我非常紧张，像热锅上的蚂蚁一样。
Do you often have sports at school?
你在学校经常参加体育活动吗？