Nentode
五极管(电子管)
🗣️ 情景例句
Don't drink the tap water.
别喝自来水。
Do you usually play piano during the holidays?
你通常在假日期间弹钢琴吗？
In England they call this line a queue. You must always wait in a queue.
在英国人们把这样的行列叫队。等车时你总得排队。