名词 runoff:

1. the occurrence of surplus liquid (as water) exceeding the limit or capacity

2. a final election to resolve an earlier election that did not produce a winner

runnings蒸馏物runningadv.连续地n.跑步；运转；管理running waves行波running robot跑步机器人running meter直线米,纵长米running watern.自来水；活水running shaft旋转轴running trial航行试验running trackn.跑道running shoot跑动投篮running speed行驶速度running ordern.运转状态(工作情况)

1. I want500 copies run off at once.
   我需要立即印出500份。
2. The heats of the 200 metres will be run off tomorrow.
   明天举行200米预赛。