Nentode
五极管(电子管)
🗣️ 情景例句
OK. We'll ring you up at 6:00 a.m. tomorrow.
嗯，我们会在明天6点整叫您。
Is there any earlier one?
还有更早一点的吗？
This company is our regular customer.
这家公司是我们的老客户。