难得

We cannot tell if a women is urinating or ejaculating outside a medical lab. These fluids all exist trough the urethra so the visible source is the same whitch doesn't help matters.

我们不能让一个女人在实验室里排尿或者射精加上阴精存在于尿道里所以分析他的成分容易被尿液干扰，从而很难得出确切结论。

It would be a rare child who does not come down with some kind of illness that elevates their temperature.

这将是一个难得的孩子谁不来与某种疾病提升他们的温度。

For example, if the two methods used are the Playfair cipher and simple columnar transposition, if transposition is used first, the Playfair cipher can still be attacked, because it takes each input letter to a limited number of substitutes; if the Playfair cipher is used first, multiple anagramming, although now much more difficult, is still possible because a text enciphered by Playfair still has digraph frequencies marked well enough to allow a correct match to be detected.

例如，如果这两种方法用的是playfair密码和简单的柱状移位，如果移位是用第一， playfair密码仍然可以被攻击，因为它需要每个输入信有限数量的代用品；如果playfair密码是用来首先，多重anagramming ，虽然现在困难得多，仍然有可能因为一个文本加密由playfair仍然有向图的频率明显做得不够好，让一个正确的匹配，以进行检测。

The provision for the widow was attributable to the exertions of the Church, which never relaxed its solicitude for the interest of wives surviving their husbands —— winning, perhaps, one of the most arduous of its triumphs when, after exacting for two or three centuries an express promise from the husband at marriage to endow his wife, it at length succeeded in engrafting the principle of Dower on the Customary Law of all Western Europe.

关于寡妇的规定，应该归功于教会的努力，它始终不懈地关怀着丈夫死后妻子的利益，——经过二三世纪的坚决要求之后，才获得了所有的胜利中也许是最难得的一个胜利，就是丈夫在结婚时就明白保证赡养其妻，最后并把&扶养寡妇财产&的原则列入了全西欧的&习惯法&中。

And it was saved, baseball enrapturing him once again, giving him the chance so few get: to write his own ending.

棒球再一次让他狂喜，给了他一个难得的机会——去书写自己独一无二的结局。

Not much fazes an Aries, because you were born with an abundance of courage.

因为你们与生俱来的勇气，所以没有什么难得到白羊的。

But why do people tip taxi drivers they are never going to see again, or leave gratuities in restaurants in cities they rarely visit?

同时又为什么要在难得踏足的城市，给餐厅留下赏钱？

The paradise fluttering in the city, makes the frozen building without roof: Here, we will have a fine spring day with water guggling .

七层吧——京城难得的完全室外空中花园给您的不只是惊喜，更是一份惬意！

The harmonizing atmosphere of family is a valuable.

家庭的融洽范围是很难得的。

Ring lived, and just a short walk from the Berghof, where Hitler holidayed with his girlfriend Eva Braun.Hitler fell in love with the area when he visited it to write the second volume of Mein Kampf. Later it effectively became the Nazis second seat of government after Berlin.

贝希特斯加登洲际饭店拥有138个豪华套间，这儿拥有登山缆车、温泉、水疗按摩中心、滑雪场、高尔夫球场等种种豪华度假村应该拥有的设施；更为难得的是，该饭店所在的奥柏萨尔斯堡山中空气清新、风景入画。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。