“用混凝土修筑”可以翻译为“construct with concrete” 或者 “build with concrete” 。
例句：
They plan to construct the new bridge with concrete. （他们计划用混凝土修筑这座新桥。）
The road was built with concrete to ensure its durability. （这条路是用混凝土修筑的，以确保其耐用性 。）