名词
中文翻译：传输层
同义词：
['transmission layer', 'transport layer', 'network layer']
例句：
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1. The transmissionlayer is responsible for sending and receiving data between two computers.
传输层负责在两台计算机之间发送和接收数据。
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2.In the network layer, packets are sent from one computer to another.
在网络层，数据包从一台计算机发送到另一台计算机。
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3. The network layer is also responsible for routing packets through the internet.
网络层还负责通过互联网路由数据包。