Tetrode
n. 四极管
🗣️ 情景例句
Let's share the money fifty-fifty.
我们平分这笔钱吧。
I'm two years older than you are.
我比你小2岁。
One is the general atmosphere of secrecy in which it is carried out,
一是科研工作中普遍存在的保密气氛；