Cathetron
[电]外控式三极汞气整流管
🗣️ 情景例句
No, but I've read enough about it.
不曾，不过我常常读到有关它的报导。
Health and understanding are the two great blessing of life.
健康和融洽是人生两大幸事。
The mummy is that of Shepenmut who was once a singer in the Temple of Thebes.
这是曾在底比斯神殿里当过歌手的赛潘姆特的木乃伊。