Pentatron
[电] 五极二屏管
🗣️ 情景例句
Do you like white or colored pearls?
你喜欢白的或彩色的珍珠吗？
How much is the postage for this?
这个邮费要多少钱？
As I was looking for it, the landlord came in.
当我正在寻找时，酒店老板走了进来。