What does it mean that the twin towers of Qingdao Happy Binhai City shrink?

The twin towers have become smaller. Qingdao Happiness Binhai Twin Towers is the first super-high-rise twin tower project in Qingdao, and it is also the first project that uses internal support as the foundation pit enclosure system. Shrinkage means that the Twin Towers have become smaller. As a landmark building around Qingdao Bay, the project is committed to building it into an internationally advanced building.