| 单词 | upstream |
| 释义 | upstream /up"streem"/, adv. 1. toward or in the higher part of a stream; against the current. adj. 2. directed upstream; situated upstream: an upstream journey; an upstream hideout. 3. Com. of or pertaining to the early stages in the operations of a business or industry, as exploration and production in the oil business (opposed to downstream). 4. against or opposite to the direction of transcription, translation, or synthesis of a DNA, RNA, or protein molecule. [1675-85; UP- + STREAM] |
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