这堵墙把我们的花园和邻居的隔开了。

This ___wall separates our garden from the neighbor's.

语言障碍成了他们交流的一堵墙。

The language barrier became a ___wall between their communication.

语言障碍在我们之间筑起了一堵无法逾越的高墙。

The language barrier built an insurmountable ___wall between us.

登山者们在陡峭的岩壁上小心翼翼地寻找落脚点。

The mountaineers carefully searched for footholds on the steep ___wall of rock.