Plitron
[电] 高度真空管
🗣️ 情景例句
We're very lucky, the three of us ...
我们非常幸运， 我们三个……
Boy Scouts serve the community.
童子军服务社区。
But my father had described over and over again what we should see at every milestone, after leaving the nearest town,
而是父亲曾详细给我讲了，在过了离故乡最近的那个小镇后，在每一个路标处可见到些什么。