Bivicon
双枪视象管, 双视象管
🗣️ 情景例句
Thanks, Linda.
谢谢，Linda。
Would you mind giving me a push?My car has stalled.
你介意帮我推一下?我的汽车抛锚了。
What happened before printing was invented?
印刷术发明以前是怎么一回事？