Word · Frequency #12214
upstream
逆流而上的；朝上游的；上游的
Located or moving in the direction against the flow of a stream or current; upriver.
- 1.
In a direction against the flow of a current or stream of fluid (typically water); upriver.
逆流而上；上游方向
- 2.
in the direction against a stream's current
逆流地；向上游
- 3.
Occurring earlier than something else; (also, usually, especially) being an influence on something else; causing a consequence for something else.
发生在某事之前；对某事有影响；导致后果
先前环节的；上游的（指流程或因果中较早的）；逆流而上；上游方向；逆流地；向上游；发生在某事之前；对某事有影响；导致后果；向上游的
In use
The upstream villages are usually the first to feel the effects of heavy rain.
Workers are repairing the upstream pipes so that clean water can reach the town.
The upstream section of the river has a faster current and colder water.
upstream + noun
此处 upstream 作定语，放在名词前，表示“靠近河源方向的”。
The upstream part of the river is cleaner.
这条河的上游部分更干净。
be upstream of sth
该结构表示相对位置；也可引申为在时间或因果关系上“较早发生/更接近源头”。
The village is upstream of the dam.
村子在大坝的上游。
Common mistakes
The city is upstream than the factory.
Connections
Collocations
- upstream flow
- 上游水流；逆流
- The upstream flow makes this stretch of river hard to swim across.上游水流使这段河很难游过去。
- upstream supplier
- 上游供应商
- We asked our upstream suppliers to improve their delivery times.我们要求上游供应商改进交货时间。
- upstream process
- 上游流程；较早阶段的流程
- Problems in the upstream process can delay the entire project.上游流程中的问题可能会延误整个项目。
- upstream sector
- 上游行业
- The upstream sector is investing heavily in new technology.上游行业正在大力投资新技术。
Idioms & figurative uses
- swim upstream
- 逆流而上；逆势而行He has always chosen to swim upstream and start his own business rather than follow the crowd.
Learner notes
Memory Tip
把 up（向上）和 stream（水流）拼在一起：顶着水流向上游走，就是 upstream，也指流程中更早的一环。
Context & Register
语域：neutral 常见场景：河流/流体方向、商业流程/软件开发 该词字面义和引申义都比较中性；字面义多用于描述水流方向，引申义常见于商业、软件研发等专业场合，通常出现在书面语或正式讨论中。
Pronunciation & Spelling
以上单词都以 /-im/ 结尾，与 upstream 中的 -stream 部分押韵。注意 uproar /ˌʌpˈrɔr/ 和 uphill /ˌʌpˈhɪl/ 等以 up- 开头的形近词发音与 upstream 完全不同，不要混淆。
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.