| 释义 |
upstream
upstream /ˌʌpˈstriːm/ adverb, adjective [before noun]
1 F0 (moving) on a river or stream towards its origin: » Salmon swim upstream against very strong currents to reach their breeding areas.Thesaurus+: ↑Watercourses and waterfalls2 F0 relating to an earlier stage in a process or series of events: » The company's upstream business includes oil exploration and production.Thesaurus+: ↑Before, after and already , ↑After and behind→ OPPOSITE DOWNSTREAM(Cf. ↑downstream) |