牵线搭桥 ｜qiān xiàn dā qiáo
Meaning: serve as a go-between
Original: “中国贸促会始终把服务中外企业作为立身之本，促进贸易和投资，推动制度型开放，在国际经贸仲裁、知识产权服务、商事调解等领域积极探索创新，同各国工商界加强沟通联系，为中外经贸合作牵线搭桥，积极推动经济全球化朝着更加开放、包容、普惠、平衡、共赢方向发展。“
Source: At the China Council for the Promotion of International Trade (CCPIT) in honor of the organization’s 70th anniversary, Xi used this chengyu to thank the 贸促会 for their role in promoting economic and trade ties between China and the world. He also asked for their help on critical economic issues in the future.