delimiting
v.
限制，定…的界( delimit的现在分词 );
定义;
例句:
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He is better than delimiting to a saleswoman with gesticulation a period of time.
他用手势向一位女售货员比划了好一阵子.
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Naturally it also forms the foundation of delimiting the rational boundary line of government investment.
政府投资政策调控工具的功能定位自然而然地就构成了政府合理投资边界确立的基础.