Crystal holder
[电] 晶体盒
🧩 词语组成解析
🗣️ 情景例句
Where's the bookstore?
书店在哪？
He already has a phonograph,but he doesn't have a radio yet.
他已经有一架留声机，但是他还没有收音机。
So it is a comparatively simple step from locating the sea bottom to locating a shoal of fish.
从测定海深到测定鱼群，这一进展比较容易。