natural barrier
natural barrier; natural defence 天险 natural drying; natural seasoning 天然干燥 natural law and natural rights 自然法与自然权利 .
natural defence
natural barrier; natural defence 天险 natural drying; natural seasoning 天然干燥 natural law and natural rights 自然法与自然权利 .
a natural stronghold
... 探险 to explore 天险 a natural stronghold 危险 peril; dangerous; danger ...
to guard a natural stronghold
James and the Giant Peach ; James and ; James and the Giant Peach by Roald Dahl
Shin Kong Life Tower
天险,指天然地势险峻的所在。见《后汉书·孔融传》:“前以露袁术 之罪,今复下刘表之事,是使跛牂欲闚高岸,天险可得而登也。”