Downstream line
[化] 下游管线
🧩 词语组成解析
downstream
['daʊnstri:m]
adv. 在下游地;顺流地;
adj. 顺流而下的;在下游方向的;
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
If someone doesn't buy it before then,
如果在此之前没有人买走的话。
By doing we learn.
经一事，长一智。
That's easier said than done!
说来容易做起来难哪！