Upstream line
[化] 上游管线; 吸引管线
🧩 词语组成解析
upstream
[ˌʌp'stri:m]
adj. 向上游的;逆流而上的;（石油工业等）上游的;
adv. 向上游;逆流地;
n. 上游部门;
line
[laɪn]
n. 线条;排;行列;界线;
vt. 排队;用线标出;沿…排列成行;给…安衬里;
vi. 形成一层;排队;击出平直球;
🗣️ 情景例句
What do you think of China?
你认为中国怎么样？
The restaurant is on the second floor.
那餐厅在二楼。
When the plane arrived, some of the detectives were waiting inside the main building while others were waiting on the airfield.
当飞机到达时，一些侦探等候在主楼内，另一些侦探则守候在停机坪上。