尽管网络层负责管理主机之间的通信，但是传输层需要负责管理主机内部各端之间的通信。

While the network layer manages communication between hosts, the transport layer manages communication between endpoints within those hosts.

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尽管网络层负责管理主机之间的通信，但是传输层需要负责管理主机内部各端之间的通信。

While the network layer manages communication between hosts, the transport layer manages communication between endpoints within those hosts.

youdao