unsymmetrical plate girder

例句：

1. 1. The bridgeis unsymmetrical, making it difficultto navigate.
   这座桥不对称，使得导航变得困难。
2. 2. The painting is unsymmetrical, with the colors not evenlydistributed.
   这幅画是不对称的，颜色分布不均匀。
3. 3. The sculpture is unsymmetrical, with one side being much largerthan the other.
   这个雕塑是不对称的，一边比另一边大得多。