Quadratron
热阴极四极管
🗣️ 情景例句
I always take good care of my body.
我总是很关注身体健康。
He was born with a silver spoon in his mouth.
他生在富贵人家。
'Hi, Elizabeth,' Nigel answered.
“你好，伊丽莎白，”奈杰尔回答说，