Thermionic valves
[医] 热离子管, 热电管(热阴极整流管)
🧩 词语组成解析
a. 热离子的\\n[电] 热离
n. 阀门；真空管；瓣膜（valve的复数）
🗣️ 情景例句
It's nice to see young love.... Oh, to be young again!
真高兴看见年轻人相爱……。啊 能再恢复年轻多好
How far is it from here to the bus stop?
到公共汽车站有多远？
It was my aunt Lucy.
是我姑母露西打来的。