Plitron
[电] 高度真空管
🗣️ 情景例句
Oh, well, I'll probably remember it later.
噢， 也许过一会我会记起来。
How much is the postage for this?
这个邮费要多少钱？
The bag fell on the floor and broke open.
糖落在地板上，袋子裂开了。