Phrase
upper level
phrase
上游
upper level
In use
Pollution at the upper level of the river has made swimming unsafe downstream.
The company is trying to find cheaper materials from the upper level of the supply chain.
We live near the upper level of the stream, so the water here is always clear.
the upper level of sth
这里指河流的上游部分。
The pollution is worse at the upper level of the river.
污染在河流上游更严重。
at the upper level
表示位置在上游方向。
The factory is located at the upper level.
工厂位于上游。
upper level [noun]
作为定语修饰名词，表示上游的。
The upper level reaches of the river are pristine.
河流的上游河段很原始。
Common mistakes
The pollution comes from the upper level of the river.The pollution comes from the upper reaches of the river.
中文学习者可能将'upper level'直接等同于'上游'，但英语中表示河流上游更常用'upper reaches'或'upstream'。'upper level'通常指楼层或级别，因此这里使用'upper reaches'更自然。
The upper level of the river is very fast.The upper course of the river is very fast.
描述河流的流向时，'upper course'或'upper reaches'比'upper level'更符合英语习惯。'upper level'不用于描述河流的流速或分段。
Connections
Confusing words
- upstream
- 上游（方向） · upper level 指位置较高的层次或等级；upstream 特指河流的上游方向。
- upper class
- 上层阶级 · upper level 指上游或较高层次；upper class 指社会地位高的阶层。
Dictionary facts from BridgeDict normalized sources.