洞穴

It is impossible to give a satisfactory explanation for a pot-holer's motiv

要想对洞穴探险者的动机作出满意的解释是不可能的。

It is impossible to give a satisfactory explanation for a pot-holer's motiv es .

要想对洞穴探险者的动机作出满意的解释是不可能的。

It is impossible to give a satifactory explanation for a pot-holer's motives.

要想对洞穴探险者的动机做出满意的解释是不可能的。

Since its discovery,it has become a sort of pot-holer's Everest.

自从这个洞被发现后，它就成了洞穴探险者的珠穆朗玛峰。

For it is impossible to foretell the exact nature of the difficulties which will confront the pot-holer.

因为无法预见到洞穴探险者究竟会遇到什么性质的困难。

It is impossibleto give a satisfactory explanation fora pot-holer's motives .

要想对洞穴探险者的动机作出满意的解释是不可能的。

Precautions of this sort are necessary, for it is impossible to forttell the exact nature of the difficulties which will confront the pot-holer.

做出这样的准备是必要的，因为无法预见到洞穴探险者究竟会遇到什么性质的困难。

Precautions of thissort are necessary, for it is impossible to foretell the exact nature of the difficulties which will confront the pot-holer.

作出这样的准备是必要的，因为无法预见到洞穴探险者究竟会遇到什么性质的困难。

The cave might never have been discovered had not the entrance been spotted by the distinguished French pot-holer Berger.

若不是法国著名洞穴探险家Berger由于偶然的机会发现了这个洞口的话，这个洞也许永远不会为人所知。

The cave might never have been discovered had not the entrance been spotted by the distinguished French pot-holer, Berger.

英尺。这个深邃的洞穴是由一条地下暗泉冲刷岩石中的缝隙并使之慢慢变大而形成的。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。