upstream

upstreamupstreamD.J.:[ˌʌpˈstri:m]K.K.:[ˈʌpˈstrim]adv.&adj.1.■向上游(的); 逆流(的)The ice blocks up the river, making the upstream water unable to flow.冰把河道堵住了, 上游的水流不下来。We swam upstream against the current.我们逆流向上游游去。

upstream['ʌp'stri:m]adv.1.■在上游；向上游；逆流地2.■在生产过程前阶段中adj.1.■在上游的；向上游的；逆流的2.■前阶段的n.1.■(石油产业的)上游部门

upstreamupstream[ˈʌpˈstri:m]adv.1.■向上游, 溯流