单词 upstreaming 释义 upstreaming, pres. pple. and ppl. a.(up- 6, 6 b.)1849M. Arnold Resignation 62 There [it] winds, upstreaming slowly still Over the summit of the hill.1884Geikie Phys. Geog. (ed. 2) 87 A zone, in which the currents would meet and asce...