Multicast backbone
[计] 多路广播主干网
🧩 词语组成解析
[计] 多址通信, 多点传送
🗣️ 情景例句
We used to catch crabs.
我们以前常捉螃蟹。
I'm listen to the music downstairs.
我在楼下听音乐。
As soon as he had hung up, he went over to the workmen and told them that if a policeman ordered them to go away, they were not take him seriously.
挂上电话后，他又马上来到工人那儿，告诉他们若有个警察来让他们走开，不要把他当回事，