grottos

n.

（吸引人的）岩洞，洞穴，（人挖的）洞室( grotto的名词复数 )；

1. Close to the grottos, there is a cinema inside a deserted railway tunnel.
   洞穴的附近有一个废弃的铁路隧道，里面设有电影院。

The Domed Caves in Qiuzi and Xumishan Grottos
Observations on the use of grottos by Mediterranean Monk seals (Monachus monachus)
A study of the mural pigments of A - er - zhai Grottos, Inner Mongolia
Experimental study of freezing-thawing cycles on sandstone in Yungang grottos
Simulation experiment on the surface of the stone carving of Nanxiangtang Grottos
An Investigation of the Saddharma-pundarika Pictures in the Dunhuang Grottos of Sui Dynasty
Studying on the Repainted Times of Archway Sutra inside Cave 61 at Mogao Grottos in Western Xia Dynasty
Experiment in Wind Tunnel on the Sheltering Effect of Forest Belts at Front of the Dunhuang Mogao Grottos
The Protection of Chinas World Cultural Heritages and Tourism Development: A Case Study of Dunhuang Mogao Grottos
Zoological species belonging to the Pleistocene and the geochronology of sediments containing them in caves and grottos in northern ...