欢迎探讨，挑战拍砖。
单位网络上外网很慢，是啥缘故呢，欢迎探讨。
Units of the network outside the network is slow, it is valid and reason, please discuss.
中国和欧盟欢迎中国、欧盟和非洲三边对话，同意探讨合作的适当领域。
China and the EU welcomed trilateral dialogue between China, EU and Africa, and agreed to explore appropriate areas for cooperation.
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