building systems is something many more people have experience in and have ...building systems is something many more people have experience in and have been taught about now.
问题描述：
building systems is something many more people have experience in and have ...
building systems is something many more people have experience in and have been taught about now.
答
关于建筑体系很多人都有亲身体验,并且目前一直被谈论.