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  1. Oxford American Dictionary

    upstream

    • IPA[ˌəpˈstrēm]

    美式

    • adv.
      in the opposite direction from that in which a stream or river flows; nearer to the source；in or towards the part of a sequence of genetic material where transcription takes place earlier than at a given point.
    • adj.
      moving or situated in the opposite direction from that in which a stream or river flows；situated in or towards the part of a sequence of genetic material where transcription takes place earlier than at a given point.
    • 釋義

    副詞

    • 1. in the opposite direction from that in which a stream or river flows; nearer to the source a lone motor cruiser rumbled upstream watch your footing and always face upstream
    • 2. in or towards the part of a sequence of genetic material where transcription takes place earlier than at a given point.
    • 3. at a stage in the process of gas or oil extraction and production before the raw material is ready for refining.

    形容詞

    • 1. moving or situated in the opposite direction from that in which a stream or river flows the upstream stretch of the river
    • 2. situated in or towards the part of a sequence of genetic material where transcription takes place earlier than at a given point.
    • 3. relating to the stages in the process of gas or oil extraction and production before the raw material is ready for refining.
    • 更多解釋

    upstream

    • IPA[ˌʌpˈstriːm]

    英式

    • adv.
      in the opposite direction from that in which a stream or river flows; nearer to the source: a lone motor cruiser rumbled upstream watch your footing and always face upstream
    • adj.
      moving or situated in the opposite direction from that in which a stream or river flows: the upstream stretch of the river

    Oxford Dictionary