Phosphonic
a. 膦的, 膦酸的
🗣️ 情景例句
Thank you. I'd very much like to have a cup of Chinese tea.
我想来杯中国茶，谢谢你。
How much will you sell me this for?
把这个东西卖给我要多少钱？
How long can you hold your breath underwater?
你在水里屏住气不呼吸能呆多久？