Permatron
[计] 磁控管
🗣️ 情景例句
Don't be lazy, the older you get, the harder it will be to learn.
别偷懒，年纪越大，学起来就越难。
A good tongue is a good weapon.
伶俐的口齿是一种锐利的武器。
This person recognized the words for river and guitar, and so Haley thought that his ancestor must have come from Gambia.
这个人认出了表示“江”和“吉他”的这两个词，于是哈利就认为他的祖先准是来自冈比亚。