界约 [boundary treaty] 两国为划分疆界、明定界址或为消除边界纠纷而共同缔结的条约。亦用以比喻为划分事权范围而制定的某种法规。梁启超二：“今釐订新官制，是无异为中央与地方划定一新界约也。”
研究表明，如今全世界约有1.2亿人被武术所吸引。
Studies show that, today, about 120 million people are attracted to Wushu around the world.
从钢铁厂到造纸厂，工业消耗了世界约三分之一的能源。
From steel mills to paper factories, industry eats up about a third of the world's energy.
全世界约有8000种日报。
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