In fact, Bonis thinks calling the Guatemala City chasm a sinkhole is a misnomer-a true sinkhole is an entirely natural phenomenon.

事实上，博尼斯认为将危地马拉城深坑称作灰岩坑(sinkhole)是用词不当——真正的灰岩坑是一种纯自然现象。

youdao

By the field survey to the natural gullies, the earth fetching areas, and the excavated slope and chasm for road foundation, we discovered 40 outcrops of the Lintong-Chang'an Fault.

通过大范围自然冲沟、人工取土场、道路开挖边坡和路堑的野外观察，新发现临潼-长安断裂露头40余处。

youdao

This gigantic chasm at the heart of Kaua'i is one of the island's greatest natural wonders, and its red-and-black-striated lava-rock walls contrasted with the lush green forests that blanket its top is a true sight to behold.

BBC: Hawaii for beach haters