Word · Frequency #12214
upstream
向上游；逆流
核心释义
Toward the source or against the current
- 1.
逆流而行
Against the current.
- 2.
向源头；逆流
toward the source or against the current
逆流而行；向源头；逆流；向上游；逆流地
用法In use
The fishermen rowed upstream to reach their favorite fishing spot.
用法提示：此处 upstream 是副词，修饰动词 rowed，表示“逆流地，朝上游”。
Every spring, salmon swim upstream to lay their eggs in the same river where they were born.
用法提示：upstream 作副词修饰 swim，说明动作的方向是“朝上游”。
It took the boat crew three hours to travel upstream against the strong current.
用法提示：upstream 作副词修饰 travel，表示“逆着水流方向”，并与 against 短语搭配使用。
verb + upstream
upstream 修饰动词，表示动作方向逆流。
Salmon swim upstream to spawn.
鲑鱼逆流而上产卵。
upstream of + noun
用于描述位置，相对于水流方向。
相关词与表达Connections
搭配Collocations
- swim upstream
- 逆流而游；溯流而上
- Salmon swim upstream to reach their spawning grounds.鲑鱼逆流而上到达产卵地。
- travel upstream
- 向源头行进；溯流而上
- They traveled upstream by boat.他们乘船溯流而上。
- migrate upstream
- 洄游到上游
- These fish migrate upstream every spring.这些鱼每年春天洄游到上游。
- flow upstream
- 向上游流
- In this section, the tide causes the river to flow upstream briefly.在这一段，潮汐使河水短暂地向上游流。
- push upstream
学习提示Learner notes
记忆技巧Memory Tip
up（上）+stream（水流）：想象一条鱼逆着水流拼命往上游游去，“逆流而上”就是upstream。
语境与语域Context & Register
语域：neutral 常见场景：river navigation、water flow direction、environmental science 通常用于描述河流、航行或水流方向，属于中性表达，正式和日常场景都比较常见。
发音与拼写Pronunciation & Spelling
stream、downstream、mainstream、midstream 以及 seam 的读音都与 upstream 末尾的 /strim/ 押韵，注意 seam 的拼写里没有 stream。upstairs 虽然以 up- 开头，但读音为 /ˌʌpˈstɛrz/，与 upstream /ˈʌpˌstrim/ 不同。
用法优先级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。
一起学习词形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.