Multicast
[计] 多址通信, 多点传送
🗣️ 情景例句
Is room service available?
有房间服务吗？
A rainbow comes into sight.
彩虹出现了！
He explained that he had tried to fix the air-line to the supply line that ran round the port but could not because the fittings did not match.
他解释说他想供气管安装到铺设在码头周围的供应管上，但因为接头不相配而接不上。