Febetron
冷阴极脉冲, β射线管, 相对论性电子发生器
🗣️ 情景例句
Of course. I'm so sorry for Michelle.
当然。我为Michelle担心。
You can stay as long as you pay the rent on time.
只要你按时交房租，你就能住这儿。
You'd better finish the work today, and bring it tomorrow.
你最好今天完成这作业，明天把它带来。