concrete face

例句：

1. 1. The construction of the new bridge is made of concrete.
   新桥的建设使用了混凝土。
2. 2.The engineer used concrete to reinforce the foundation.
   工程师使用混凝土加固了地基。
3. 3. The concrete wall is strong enough to withstand heavy loads.
   混凝土墙足够坚固，能够承受重载。