Spiratron
旋束管(离心静电聚焦行波管), 径向聚束行波管, 螺旋管
🗣️ 情景例句
Well, Grandpa will be disappointed, too.
爷爷也会感到失望。
To smoke a cigarette
吸烟
We keep trying all four methods, but he sheer volume of rubbish we produce worldwide threatens to overwhelm us.
我们一直在试这4种方式，但是，我们在世界范围内仅产生的垃圾的量就有把我们覆盖的危险。