Febetron
冷阴极脉冲, β射线管, 相对论性电子发生器
🗣️ 情景例句
and photograph street performances in the city,
拍摄城市 的街头表演，
She felt very awkward about the unpleasant situation.
她因不愉快的场面而感到十分困窘。
Good, we'll pack up the order as soon as we get the not.
好，我们一收到会立刻打包。