Febetron
冷阴极脉冲, β射线管, 相对论性电子发生器
🗣️ 情景例句
And my grandfather.
还有我祖父。
The fire is the test of gold; adversity of strong man.
烈火试真金，困苦练壮士。
Which TV programme shall we watch? I can't decide.
我们看哪个电视节目呢？我拿不定主意。