通常情况，跃层房屋是一套房屋占两个楼层，有内部楼梯联系上下层。一般在首层安排起居、厨房、餐厅、卫生间，最好有一间卧室；二层安排卧室、书房、卫生间等。
vt. overtravel
结合一典型工程实例对越层柱问题进行探讨。
Based on a typical project, this paper discussed the structural design of the cross-pillar.
第三十一条煤炭生产应当依法在批准的开采范围内进行，不得超越批准的开采范围越界、越层开采。
Article 31 Coal production shall be carried out within the approved limits of mining areas according to law. Mining beyond the approved limits of mining areas or seams shall be forbidden.
一开始先从规模小一点的建筑盖起，像是22层楼的熨斗大厦，摩天大楼在20年代越盖越高。
Starting small with structures like the 22-story Flatiron Building, skyscrapers grew taller and taller in the twenties.
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