upstream
柯林斯詞典
1. ADV Something that is moving upstream is moving towards the source of a river against the current, from a point further down the river. Something that is upstream is towards the source of a river. 向上游
Salmon manage to swim upstream to lay their eggs. 三文魚設(shè)法游到上游產(chǎn)卵。
...the river police, whose headquarters are just upstream of the Isle St Louis. …總部就設(shè)在圣路易斯島上游的水警。
2. ADJ Upstream is also an adjective. 上游的[ADJ n]
We'll go to the upstream side of that big rock. 我們將去那塊大巖石的上游一側(cè)。
返回 upstream
upstream /??p?stri?m/
劍橋詞典
- (moving ) on a river or stream towards its origin
在上游（地）；向上游（地）；逆流（地）
Salmon swim upstream against very strong currents to reach their breeding areas . 大麻哈魚會(huì)迎著湍急的水流游向上游它們的產(chǎn)卵區(qū)。
relating to an earlier stage in a process or series of events
在（某過程或事件的）前階段
The company's upstream business includes oil exploration and production . 這家公司的上游業(yè)務(wù)包括石油勘探和開采。