Kathetron
一种有外栅极的三极管, 辉光放电管
🗣️ 情景例句
Is it a two-bedroom house?
是两个卧室的吗？
cheep-cheep, peep-peep
吱吱，啾啾
We have agreed on all terms in the contract. Shall we sign it next week?
我们对合同各项条款全无异议，下周签合同如何？