Moonbows are rarer than rainbows.
月虹比彩虹更罕见。
Programs using yacc, but not lex, are rarer.
使用yacc而不使用lex的程序比较罕见。
But the regulations do not cover rarer forms of E. coli.
然而，这些条例没有将大肠杆菌的一些罕见种类纳入监管范围。
Financing was hard to scare up, and deals were smaller and rarer.
融资难，成交难，交易规模小。
These, mercifully, have grown much rarer in Egypt in recent years.
幸好，近年来类似事件在埃及很少发生了。
The remaining 75% is almost certainly governed by rarer genetic variations.
剩下的75%几乎由更为少见的基因变异所控制。
The most creative people imitate rarer, more brilliant sources and cover their tracks.
最有创意的人模仿罕见的、更加优秀的资源，然后掩盖其模仿的痕迹。
Centenarians used to be rarer than hens' teeth; now America alone has 100,000 of them.
过去，百岁老人就像母鸡的牙齿一样罕见，如今美国已经拥有十万名百岁老人。
Centenarians used to be rarer than hens' teeth; now America alone has 100, 000 of them.
过去，百岁老人就像母鸡的牙齿一样罕见，如今美国已经拥有十万名百岁老人。
The great thing about getting older is that this sort of public failure gets rarer too.
年龄增长的一个好处，就是这种当众失败的情况越来越少见。
Non-radioactive carbon comes in two forms: 12C and the heavier (and much rarer form) 13C.
非放射性碳以两种形式存在：12C还有较重（并且更罕见）的13C。
It is rare for the human race to make a billion of anything, still rarer for any one company.
对于人类来说，任何东西要想造出10亿个都是是非常罕见的，对任何一家公司来说就更罕见了。
The sample size is of course very small, with specimens rare and samples for experimentation rarer.
样本当然非常小，因为标本很少而能用来做实验的样本就更少了。
Daguerreotypes were usually portraits; the rarer views are much sought-after and are more expensive.
达盖尔照相术通常用来拍人像，拍风景的很少，也就更吃香，更是昂贵。
Some species of snail have shells that spiral out in an anticlockwise direction, but it is much rarer.
有些种类的蜗牛有着从里到外逆时针的螺壳，不过这少见的多。
This may, in part, be because large spills have grown rarer as tanker technology, too, has improved.
在某种程度上，这可能是因为随着油轮建造水平的不断提高，大规模的漏油事件已越来越罕见。
Third, because corporate networks were rare and Internet use even rarer, the PC had to be self-sufficient.
第三，由于公司网络稀缺，互联网用户则更是罕见，PC必须自给自足。
There is something that is much more scarce, something rarer than ability. It is the ability to recognize.
有的东西比才能稀罕得多，珍贵得多，这就是识别的能力。
"The midnight sun is one thing," one of the select few boasts, "but the full moon at noon is rarer and finer."
“午夜的太阳自然是一奇景，”其中一人吹嘘道，“但中午的满月却更少见，而且也更美。”
“The midnight sun is one thing,” one of the select few boasts, “but the full moon at noon is rarer and finer.”
“午夜的太阳自然是一奇景，”其中一人吹嘘道，“但中午的满月却更少见，而且也更美。”
Cold days, nights and frost have become rarer while hot days, hot nights and heatwaves have become more frequent.
寒冷的白天、黑夜和霜冻变得更加稀少，然而炎热的白天、黑夜和热浪正变得更加频繁。
Murder is rarer, but also fascinating, as the detective stories that clutter both airwaves and bookshops attest.
正如电视广播里播讲的以及书店陈列的侦破小说所展现的那样，谋杀虽然罕见，但也具有吸引力。
Prodigies (those wunderkinds who read at 2 and go to college at 10) are rarer still — like one to two in a million.
神童(2岁读书10岁上大学)现在依然稀少——大约每百万人中会出现1到2个。
Supercentenarians, or individuals that are older than 110, are even rarer—only one in seven million fall into this category.
超级百岁老人(即年龄超过110岁的人)更加稀少--在此类人群中的比例仅为七百万分之一。
In many parts of the world, cold days and nights have become rarer, and hot days and nights more common, over the past half-century.
近半个世纪，在全世界的很多地方，寒冷的白天和夜晚都变得更加少见，而热天气则更加常见。
It is rare that a banker admits to the inevitability of onerous new rules and it is rarer still for a Rothschild rainmaker to speak out.
真是很罕见，一个银行家会认同目前严苛的新规则，而且更罕见的是：一个呼风唤雨的罗斯切尔德人会这样讲。
The lesson of the past 50 years, however, is that the more humanity discovers about space, the rarer and more precious life on Earth seems.
50年的空间探索告诉我们，人类对宇宙了解得越多，地球上的生命就越显珍贵。
But technological change has made well-paid blue-collar jobs rarer as rich economies, helped by globalisation, have shifted from industry to services.
但在全球化的帮助下，技术革新使富裕经济体从产业型经济转变为服务型经济，薪资丰厚的蓝领工作变得越来越少了。
But technological change has made well-paid blue-collar jobs rarer as rich economies, helped by globalisation, have shifted from industry to services.
但在全球化的帮助下，技术革新使富裕经济体从产业型经济转变为服务型经济，薪资丰厚的蓝领工作变得越来越少了。
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