The Danes made numerous descents upon the English coast during the 10th century.

丹麦人在十世纪曾对英国海岸发动过无数次袭击。

But it is more important not to think lies, or to slide into those mechanical and untruthful habits of thought which are so pleasant and so easy as descents to mental ineptitude

但是更重要的是不去想谎言,也不陷入无意识的、不诚实的思维习惯,这种思维习惯如此他令人惬意和自在,就象沦为智力低能一样。

Though a number of descents have been made, much of it still remains to be explored.

人们多次进入洞内探险,但至今尚有不少东西有待勘探。

The Danes made numerous descents upon the English coast during the 10th century.

在第十世纪中,丹麦人曾对英国沿海作无数次的突袭。

||1:Curiosity's size makes getting it safely onto the Martian surface tricky.||2:Previous rovers have deployed parachutes to slow their descents , and have then crashed into the ground using airbags to cushion their impacts.||3:Curiosity is too massive for that approach to work.||4:Instead, NASA hopes to deposit it on Mars using a contraption it has dubbed a skycrane.

||1:"好奇"号体积庞大，这使其安全着陆火星的工作变得十分棘手。||2:之前的漫游车的下落过程采用降落伞减速，并采用气袋来缓冲撞击地面造成的冲击。||3:但这种方法对于体积庞大的"好奇"号却不适用。||4:美国宇航局意图采用一个设计精巧的"空中起重机"使"好奇"号安全着陆火星。

||1:Curiosity's size makes getting it safely onto the Martian surface tricky.||2:Previous rovers have deployed parachutes to slow their descents , and have then crashed into the ground using airbags to cushion their impacts.||3:Curiosity is too massive for that approach to work.||4:Instead, NASA hopes to deposit it on Mars using a contraption it has dubbed a skycrane.

||1:"好奇号"的尺寸使之能在火星复杂表面安全着陆。||2:以前，漫游者打开降落伞减慢下降速度，在撞向地面时用安全气囊缓冲。||3:"好奇号"大到这样的方法不能起作用。||4:相反地，NASA希望利用一种精巧的被称为"天空起重机"的装置使其在火星着陆。

But the fact that no one is sure what caused those ballistic descents can't be a comfort.

但没人确定为什么会有这样的降落，这才是让人最不舒服的。

Nightmares, these descents into hell, did they make sense?

噩梦，正如坠入地狱一样的恐怖，它的存在有意义吗？

Though a number of descents have been made, much of it still remains to be explored.

虽然已多次有人进入洞内，但仍有不少地方有待勘探。

Flying into the void, author Mark Jenkins makes one of 14 rope descents in Kanangra Main.

作者马克﹒詹金斯跃入空中，完成了他在卡南格拉主峡谷中14次绳降中的一次。

method of steepest descents

最陡坡度法

methods of steepest descents

陡峭下降法

lineal succession of four descents

四代相传