Rectron
电子管整流器
🗣️ 情景例句
and I stayed out an extra half hour.
我还特别多待了半个小时。
No vice goes alone.
坏事不单行。
it is quite reasonable to regard the sea floor as the basic form of the crust of the earth,
因此完全有理由把海床看作地壳的基本模壳，