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main channel应该维护《联合国气候变化框架公约》及其议定书的～地位。The United Nations Framework Convention on Climate Change and its Protocol should be upheld as the main channel for addressing climate change.
英汉词典共收录311570条英汉翻译词条，基本覆盖所有常用英文单词的例句及中文翻译，是不可多得的英语学习材料。