Pentatron
[电] 五极二屏管
🗣️ 情景例句
But I need some information.
但我需要一些资料。
The student felt very shy as he stood in front of the class.
那个学生站在大家的跟前时，感到非常难为情。
The machine was used in a cave near the seashore where -- it is said -- pirates used to hide gold.
在靠近海边的一个据说过去海盗常在里面藏金子的岩洞里，这种机器被派上了用场。