1. While SIP is a request-response protocol, there is not necessarily only one response to every one request. 虽然 SIP 是请求-响应协议，但每个请求不一定只有一个响应与之对应。
2. Cerf has been working with NASA's Pasadena Jet Propulsion Laboratory—the people behind the recent Mars expedition—to design what he calls an "interplanetary Internet protocol." 瑟夫一直在与美国宇航局的帕萨迪纳喷气推进实验室（最近火星探测的幕后人员）合作，设计他所说的“星际互联网协议”。
3. The Kyoto Protocol, which set different duties for all countries to cut emissions, states that different countries should reduce their collective greenhouse emissions accordingly. 《京都议定书》为各国设定了不同的减排义务，规定各国应相应地减少各自的温室气体排放总量。
4. He has become a stickler for the finer observances of Washington protocol. 他成了拘泥于华盛顿外交礼节的人。
5. It is set out in a legally binding protocol which forms part of the treaty. 这在有法律约束力的、构成条约之一部分的附件中有说明。
