n.分界线( boundary的名词复数 )；范围；使球越过边界线的击球（得加分）；疆界 双语释义：n.(名词)[C]分界线 the dividing line[C]界限,范围 the outer limit of anything英英释义： boundaryn.the line or plane indicating the limit or extent of something同义词：boundboundsa line determining the limits of an area同义词：edg