Mbone
[计] 多路广播主干网
🗣️ 情景例句
What kinds of articles have you written?
你写过一些什么样的文章？
You should wear a heavy coat, It's below zero today.
你应该穿一件厚大衣，因为今天在零度以下。
What is more, this information line operates 24 hours a day.
而且，这种"问讯线路每天工作24小时。