level contacts and exchanges
...ghborly Treaty of Friendship and Cooperation 进一步加强高层交流机制 to further boost high-level contacts and exchanges 加大在对方核心利益上的彼此支持 to enhance support for each other, particularly on issues concerning each other's core i...
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level contacts and exchanges
级别接触和交流
以上为机器翻译结果，长、整句建议使用 人工翻译 。