However, if any host in the network wishes to send a message to this multicast group and is not interested in receiving a response, then using ACE_SOCK_Dgram for sending purposes is also sufficient.
2
因此，如果你想要在一个游戏中实现多播，你可以增加多播的功能选项。
So if you want to implement multicasting in a game, you're better off adding it as an option.
3
另外，当你看报道的时候如果受到打扰，你可以再倒回去看，但是你却不能叫电视台给你再播一次。
In addition, if you are interrupted while reading a report, you can pick it up again later, while you cannot ask the TV station to broadcast it for you once more.
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