中方作为上游国家，高度重视下游国家关切和利益，一直采取负责任的态度开发和利用水资源。
China, as an upstream country, attaches great importance to the concerns and interests of downstream countries and adopts a responsible attitude in the development and utilization of water resources.
答：在REACH法规下，如果非共同体出口商指定了“独家代理”，这些物质的进口商将没有责任进行注册，且被认为是下游用户。
When the non-community exporter has appointed an "only representative", the importers of the substance are relieved of their duties as registrants under REACH but will be regarded as downstream users.
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