Bitermitron
双端管(M型非重 入返波正交场放大管)
🗣️ 情景例句
What are your major and minor subjects?
你主修和副修什么科目？
It takes all sorts to make a world.
万千事物，形成世界。
How did Mary make all of her money?
玛丽所有的钱是怎么赚到的？