Bispectral
双谱
🗣️ 情景例句
Thank you very much.
谢谢你。
Do you have a ball point pen?
你有圆珠笔吗？
Fine, thanks. Oh, That's the bell. Everyone is going into class, we'd better go too.
很好，谢谢。啊，铃响了。大家都去上课。我们最好也去。