The practice of paying children an allowance became popular in America about 100 years ago.
大约100年前，给孩子们零花钱的做法在美国开始流行。
Phineas Gage was a construction worker about 100 years ago.
大约一百年前，菲尼亚斯·盖奇是一名建筑工人。
Now just think - it was only discovered about 100 years ago.
大家想想看，氧气的发现只有100多年啊！
As a painting technique, ink painting emerged only about 100 years ago.
彩墨画，作为一种绘画技法到现在只不过近百年的历史。
About 100 years ago, the center of Changsha City was a small town with population of 10 million persons.
约百年前，现在的长沙市中心应该是一个拥有十来万人的小镇了。
About 100 years ago, the dolomites have been the place of some fierce fighting between the Italian and Austrian armies.
大概在100年前，白云石山曾经是意大利和奥地利两国激战的地方。
While vichyssoise can be dated to about 100 years ago, gazpacho has a much longer history and one that's a little harder to date.
奶油土豆浓汤可以追溯到大约100年前，西班牙凉菜汤的历史则久远得多，具体日期较难确定。
When psychology and philosophy filed for divorce about 100 years ago, they faced the common dilemma of how to divide the book collection.
大约100年前，心理学和哲学分道扬镳的时候，两者遭遇了一个常见的窘境——如何分割藏书。
Scientists have been skeptical of claims of mathematical abilities in animals ever since the case of Clever Hans about 100 years ago.
科学家们，从100年前的CleverHans事件起，一直对动物有数学能力的说法保持怀疑态度。
The problem with the greenhouse effect began about 100 years ago when people started using fuels like oil and petrol on a large scale.
一百年前人们开始大规模地使用汽油等燃料时，温室效应于是开始。
It's also worth remembering that our planet started to get "radio noisy" when we started transmitting radio and television signals about 100 years ago.
值得注意的是，我们的星球开始接收到无线电噪音是在大约100年前当我们开始传播无线电波和电视信号的时候。
Solving the problem the problem with the greenhouse effect began about 100 years ago when people started using fuels like oil and petrol on a large scale.
大约在一百多年前，当人们开始广泛用石油、汽油作燃料，温室效应的问题开始出现。
But when the recognizable forerunner of the business suit of today first made its appearance about 100 years ago it was considered a very casual alternative.
而当100年前，我们今天熟悉的商务套装雏形首次面世时，它可被认为是很休闲的选择。
Concert grand with the same basic construction and features as the smaller model B. Very common concert instrument all over the world, designed about 100 years ago.
音乐会大相同的基本结构和功能的小模型湾非常常见的音乐会演奏乐器的世界各地，设计约100年前。
About 100 years ago, coal miners would take a bright yellow canary down into the mines with them. The miners wanted to hear the bird's sweet song, but not for the reason you might think.
大约100年前，煤矿工人下煤矿的时候都会随身带一只黄色的金丝雀，他们希望小鸟能唱出甜美的歌声，但并不像你想象的那样。
Even though the eruptions happened a quarter-billion years ago, the method gave them an error of only about 100, 000 years.
尽管火山爆发在2.5亿年以前发生，这种方法只有大约10万年的误差。
The unique neurobiological apparatus that enables the finch to sing developed after the lineage of the zebra finch and chicken diverged, about 100 million years ago.
大约在1亿年前，那个独一无二的神经系统装置使得斑胸草雀通过唱歌从鸡的家系中脱离出来成为草雀这一旁支。
Other phobias that persist intomodern times may have been fixed much more recently than snakes and spiders, say in the late Paleolithic age, about 100, 000 years ago, or even morerecently.
现代人继承得来的其它恐惧症，其形成时间可能远远晚于对蛇类和蜘蛛的恐惧；有可能在十万年前的旧石器时代晚期或更晚。
The volcano made it above that surface only a million or so years ago, since when the island has grown to about 100 square kilometres.
火山喷发使这座岛屿露出水面距今大概只有一万年左右，自那以后，这座岛屿生长到了大约100平方公里。
But later studies found the cluster to be about 100 million years old — any dust left over from its formation would have dissipated long ago.
但最近的研究表明，这片星团的年龄只有1亿年——如果这是遗留下来的尘埃，那应该早就弥散开了。
Starting with one page and one site just about 15 years ago, there are now over 100, 000, 000 web sites[3] with an estimated over 8 billion publicly accessible pages as of 2005.
仅仅15年前，万维网还只有一个网站一个页面，现在已经有超过100 000 000个网站，截止到2005年，据估算，已经有多达80亿公开可访问页面。
Their investigation indicates that NGC 1316 is an enormous elliptical galaxy that started, about 100 million years ago, to devour a smaller spiral galaxy neighbor, NGC 1317, just above it.
他们的调查表明，NGC 1316这个巨大的椭圆星系大约在1亿年前开始吞噬位于照片上方、体型较小的旋涡星系邻居NGC 1317。
Their investigation indicates that NGC 1316 is an enormous elliptical galaxy that started, about 100 million years ago, to devour a smaller spiral galaxy neighbor, NGC 1317, just above it.
他们的调查表明，NGC 1316这个巨大的椭圆星系大约在1亿年前开始吞噬位于照片上方、体型较小的旋涡星系邻居NGC 1317。
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