Unless you're an avid spelunker, or a troglodyte, the answer is probably not too often.

除非你是一名探索爱好者或者一名居人。

We reached a beautiful grotto, whose entrance was almost hiden by the vine.

我们到达了一个美丽的,的进口几乎被藤蔓遮掩著。

Deviate Fish -These are fishable in the Barrens in Wailing Caverns.

偏离鱼，这些都是在哀嚎瘠之地捕捞。

The roof of the cave dropped in on the miners, trapping them.

的顶部坍了下来, 砸在矿工身上。

In fact I've rarely seen such a pesthole.

事实上我以前很少见到这样的害虫的.

Calypso in her caves constrained his stay.

她中的卡吕普索强迫他留下。

Walkways allow visitors to enter the caves in perfect safety.

步行道使游客可以十分安全地进入那些。

We found some really interesting caves, but we didn't have the gear to go spelunking.

我们发现一些相当有趣的，但我们没有装备去进行探险。

CRONOS is well suited for local, regional, and teleseismic recording from both posthole and vault installations.

Cronos很适合安装在井孔和地下中，进行本地、区域及遥测地震记录。

Mineral deposits in Lechuguilla Cave take on fantastical forms in Carlsbad Caverns National Park, New Mexico.

矿物的图片集。矿物沉淀物在墨西兰位于卡尔巨国家公园，新墨西。

We entered a dark cavern redolent with manly scents —gun oil and cigar smoke and boot polish.

我们进入一个昏暗的,里面充满了男人的气味——枪油、雪茄烟味和擦靴子油味。

It may also be referred to as "draining" (when exploring drains) "urban spelunking", "urban caving", or "building hacking".

它同样也被称为“下水道探索”，“城市探险”，“建筑探险”等等。

Towering in close symmetry, these basalt columns near Fingal’s Cave form the base of the Scottish island of Staffa.

极端的地球图片。高耸的密切的对称性，这些玄武岩园柱状物附近Fingal的形式的基础上苏格兰岛的Staffa 。

It is also hard to explain how the Sun-god Mithra would come to be worshipped in the windowless, cave-like mithraeum.

这也很难解释太阳神密特拉如何在无窗，似的太阳式举行崇拜。

Based on the U-series dating of intercalated speleothem formations, the chronology of several hominid sites in southern China has been studied.

本文对采自云南呈贡潭山1号和广西土博咁前晚期智人遗址的动物化石和次生碳酸岩样品进行了铀系年代测定。

At least some of the mutations responsible for this loss of vision differed between the 29 populations of cavefish known to exist.

目前现存的29种鱼，其眼盲亦与这些突变有关，但是其基因突变的位置并不相同。