地堑

例句：

1. 1. The tunnel is too narrow fora car to pass through.
   隧道太窄，汽车无法通过。
2. 2. The mountain range ishome to many natural wonders, includingthe famous Grand Canyon.
   山脉拥有许多自然奇观，包括著名的大峡谷。
3. 3. Theconstruction of this bridge was a major engineeringfeat.
   这座桥梁的建设是一项重大的工程壮举。