从幼年初期时起，我们就与我们的计数系统紧密联系在一起，以至于考虑未开发计数能力的早期人类所面临的那些问题，就已经成为了想象力上的一次壮举。
From earliest childhood, we are so bound up with our system of numeration that it is a feat of imagination to consider the problems faced by early humans, who had not yet developed this facility.
再一次地，有一只老虎在油箱里很好，但是有一只老虎在驾驶席上就完全是另一回事了。
It is very well, again, to have a tiger in the tank, but to have one in the driver's seat is another matter altogether.
有一次在一家药店，我环顾四周，发现一个人站在一个大盒子上，往货架上放货物。
Once, at a drug store, I was looking around and found a guy standing on a large box, stocking the shelves.
在所有可能有生命存在的空间里，地球上的生命只占一小条――创造性的一次尝试。
In the space of all possible lives, life on Earth is but a tiny sliver—one attempt at creativity.
这是第一次在女性和男性的大脑中发现结构上的差异，而且这一定有某种意义。
This is the first time that a structural difference has been found between the brains of women and men and it must have some significance.
这次选举将不会是上一次的重演。
小船一次又一次撞在岩石上。
我还记得当我第一次上幼儿园的时候，所有的老师都站在学校门口热情地向我挥手。
I still remember that when I went to kindergarten for the first time, all the teachers were standing at the school gate waving at me kindly.
在一次英国商界高层人士的大型会议上，他站了起来，解释了他成功的秘诀。
At a big meeting of top British businesspeople, he stood up and explained the secret of his success.
在去年10月举行的一次重要会议上，生物学家和其他科学家把他们的注意力转向了植物和动物。
Biologists and other scientists turn their attention to plants and animals at an important meeting that took place last October.
我们还可以询问长辈，了解如何在精神上最好地支持他们，并把我们的牺牲当成一次机会，让我们所有人、我们的社区和整个世界变得更加亲近。
We can also ask elderly relatives how to best support them spiritually and use our sacrifices as an opportunity to bring us, our community and the world closer.
实际上，您可以通过用逗号分隔多个事物来一次初始化它们，有时这很有帮助。
You can actually initialize multiple things at once by separating them with a comma, and this is sometimes helpful.
当心脏监测器上的最后一次跳动逐渐停止时，我知道莱拉已经永远离开了我的生活。
As the last beats in the heart monitor trailed off, I knew Lyra had left my life forever.
迪克·莫里斯建议，在正式宣布参加竞选之前，我首先要在电视上承认错误，请求再给我一次机会。
Dick Morris suggested that before I made a formal announcement, I should go on television to acknowledge the mistakes and ask for another chance.
你可能知道什么是移动电话，但我说的移动电话是一个挂在天花板上的精致的装饰品，随着每一次呼吸轻轻地移动。
You probably know what a mobile is, but the mobile I'm talking about is a delicate object of decoration hanging from the ceiling and moving gently with every breath.
4亿多年前，植物第一次向海岸上迁移时，陆地上荒凉而贫瘠，并非生命宜居之地。
When plants first made the transition ashore more than 400 million years ago, the land was barren and desolate, inhospitable to life.
有一次我在电视上看有关烹饪的节目，我想我可以做这个，所以就去书店找自己所能找到的内容最多的烹饪书。
Once I was watching something about cooking on TV and I thought I could do this, so I went to the bookstore and looked for the biggest cookbook I could find.
在一次派对上，他让一名皇家空军(RoyalAir Force)飞行员一听到“德国”这个词，就把灯具上的灯泡取下来，放到花盆里。
At a party, he instructed a Royal Air Force pilot to remove the bulb from a light fitting and place it in a flowerpot, on hearing the word Germany.
与此同时，那只鸟扑打着翅膀落在帽子上，又一次舒舒服服地坐在她的蛋上。
At the same moment the bird fluttered down upon the hat and once more sat snugly on her eggs.
事实上，我参加的几乎每一次面试，都是我通过纯粹的决心而获得的联系，并非学校的名声。
In fact, almost every interview I've ever had was due to a connection—one that I've gained through pure determination, not a school brand.
今年8月，当她第一次意识到自己有问题了的时候，她在雅虎的一个网瘾小组上贴出了一条信息，标题是：我有网瘾。
In August, when she first realized she had a problem, she posted a message on a Yahoo Internet addiction group with the subject line: I have an Internet Addiction.
传统上，大学生在踏上人生之旅之前会举行一次毕业典礼以鼓励自己。
Traditionally, college students hold a graduation ceremony to encourage themselves before they set off on their life journey.
事实上，直到罗伊在2009年的一次会议上遇到尼尔·凯利（Neil Kelley），研究人员才可以公开使用任何有关温度的现场数据。
In fact, no field data on temperature were publicly available for researchers to use, until Roy met Neil Kelley at a 2009 conference.
当第一次用望远镜观测到火星时，人们从飞机上看到，火星的圆盘在地球上纵横交错。
When the planet Mars was first observed through a telescope, people saw that the round disk of the planet was crisscrossed on earth that are viewed from an airplane.
当第一次用望远镜观测到火星时，人们从飞机上看到，火星的圆形圆盘在地球上纵横交错。
When the planet Mars was first observed through a telescope, people saw that the round disk of the planet was criss-crossed on earth that are viewed from an airplane.
他们中的许多人一次又一次地把他们的黑莓手机掉在地上，而手机外壳上只有几处划痕。
Many of them have dropped their Blackberry over and over with little more than some scratches on the casing.
上一次沿着卡斯卡迪亚断层发生的大地震是在1700年，所以官员们担心另一场大地震随时可能发生。
The last time a major earthquake occurred along the Cascadia fault was in 1700, so officials worry that another event could occur any time.
上一次客人们有些困惑，存放了东西之后不知道应该去哪，以至于发生了客人们在整间酒店里四处走动的情况。
Last time there was some confusion as to where guests were supposed to go once they had deposited their things and we had guests roaming around the whole hotel.
我们一直在宣传 Endure的生产过程，但最新研究表明，尽管我们的袜子具有耐久性，但我们的普通客户实际上还是要每三个月购买一次新的Dura-Socks。
We have always advertised our use of the Endure process, but the new study shows that despite our socks' durability, our average customer actually purchases new Dura-Socks every three months.
我们一直在宣传 Endure的生产过程，但最新研究表明，尽管我们的袜子具有耐久性，但我们的普通客户实际上还是要每三个月购买一次新的Dura-Socks。
We have always advertised our use of the Endure process, but the new study shows that despite our socks' durability, our average customer actually purchases new Dura-Socks every three months.
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