Sdtv
abbr. standard definition television 标准清晰度电视
🗣️ 情景例句
I hope they aren't lost.
但愿没丢才好。
How did you sign the letter?Did you write, sincerely yours?
你怎么签名信的?你写了"真诚地你的"？
Yes, wonderful, thanks.
愉快极了，谢谢。