Febetron
冷阴极脉冲, β射线管, 相对论性电子发生器
🗣️ 情景例句
There's still an outside chance that he'll make it into the finals.
他打入决赛还有一线希望。
Please do not touch the wet paint.
油漆未干，请勿触摸。
but it was not until 1869,
但直到1869年，