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
Many students are working at part time jobs.
许多学生兼职打工。
Wow, it's itchy!
哗，好坏！
Men in shirt sleeves stood outside their houses and glared at us.
只穿着衬衣的男人们站在屋子外面凶狠地盯着我们，