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
All right!
好啦！
I swear I'll never tell anyone.
我发誓不告诉任何人。
But this is not a business that can be undertaken in a day or swiftly improvised by a mere command of the will.
但这并非一日之功，也不是单凭意志一蹴而就的事。