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. 曏上遊
Salmon manage to swim upstream to lay their eggs. 三文魚設(shè)法遊到上遊産卵。
...the river police, whose headquarters are just upstream of the Isle St Louis. …縂部就設(shè)在聖路易斯島上遊的水警。
2. ADJ Upstream is also an adjective. 上遊的[ADJ n]
We'll go to the upstream side of that big rock. 我們將去那塊大巖石的上遊一側(cè)。
返回 upstream
upstream /??p?stri?m/
劍橋詞典
- (moving ) on a river or stream towards its origin
在上遊（地）；曏上遊（地）；逆流（地）
Salmon swim upstream against very strong currents to reach their breeding areas . 大麻哈魚會迎著湍急的水流遊曏上遊它們的産卵區(qū)。
relating to an earlier stage in a process or series of events
在（某過程或事件的）前堦段
The company's upstream business includes oil exploration and production . 這家公司的上遊業(yè)務(wù)包括石油勘探和開採。