Twt
[电] 行波管
🗣️ 情景例句
It's not finished yet.
现在还没有完成。
You'll be sorry.
你会后悔的。
Spiders are not insects, as many people think, nor even nearly related to them.
许多人认为蜘蛛是昆虫，但它们不是昆虫，甚至与昆虫毫无关系。