词典释义：
释义
n.
the period preceding a notable event
（重大事件的）序幕，前奏；前导期，预备期
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a programme aimed at lowering unemployment in the run-up to the next election .下次选举准备期内旨在降低失业率的计划。
an act of running briefly to gain momentum before performing a jump in athletics, bowling in cricket, etc.
（田径运动中跳高、跳远或板球的投球等之前的）助跑。
the strip of ground behind the wicket on which the bowler runs before bowling
助跑区（投球手投球之前在三门柱后面助跑的地带）。
【高尔夫】 （打近球穴的）低滚球，击低近球。
an act of running an engine or turbine to prepare it for use or to test it
（发动机或涡轮机的）预备性运转；测试运转，试运行。
a marked rise in the value or level of something
急剧上升；迅速增长
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a sharp run-up of land and stock prices .土地和股票价格的猛涨。
易错必背词
词源
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