upstream

Relating to the earlier stages of a process or supply chain; in computing, referring to the original source of a project or data flow.

• 🇨🇳指流程或供应链中较早的阶段；在计算机领域指项目或数据流的原始来源。

1. Against the current B1 formal

   Located or moving in the direction opposite to the flow of a river or stream.

   • The salmon swim upstream to spawn.
   • The upstream section of the river is cleaner.
   • They built a dam upstream from the village.

   🇨🇳逆流

   同义词: upriver

   反义词: downstream

• more upstream comparative form
• most upstream superlative form

An adverb meaning 'in the direction opposite to the flow of a current (e.g., a river or stream).' In technical and business contexts, it is also used metaphorically to refer to earlier stages in a process or supply chain, such as in software development (e.g., working on upstream dependencies) or oil and gas industries.

• 🇨🇳副词，表示逆着水流方向（如河流或溪流）。在技术和商业语境中也用作比喻，指流程或供应链中的较早阶段，例如在软件开发中（处理上游依赖）或石油天然气行业。

1. Against the current B1 formal

   Moving or located in the direction opposite to the flow of a river or stream.

   • The salmon swim upstream to spawn.
   • We rowed upstream for several hours.
   • The boat struggled to move upstream against the strong current.

   🇨🇳逆流

   反义词: downstream

• further upstream comparative form
• furthest upstream superlative form