如果你想远离岔气，试着避免在跑步前一个小时内吃东西。
If you tend to suffer from side stitches, try to avoid eating within one hour of running.
月球被认为是由约45亿年前一个火星大小的星体与当时仍然处于熔融状态的地球相撞后弹出的碎片所形成的。
The moon is thought to have formed from debris ejected into space after a Mars-sized body collided with the still-molten Earth about 4.5 billion years ago.
我对孩子们说，要是他们在期终考试前一个星期不看电视，那么我就在他们放暑假的第一个星期带他们去动物园看熊猫。
I told my kids if they stop watching TV for a week before their final exams, I'll take them to the zoo to see the pandas the first week of their summer vacation.
一个世纪前，化学家斯万特·阿伦尼乌斯就人类影响地球气候的可能性展开了最早的辩论之一。
A century ago, chemist Svante Arrhenius started one of the first debates over the potential for humans to influence the planet's climate.
近一个世纪前，生物学家发现，如果他们在无脊椎动物胚胎生命的早期阶段将其分成两部分，它会存活下来并发育成两个正常的胚胎。
Nearly a century ago, biologists found that if they separated an invertebrate animal embryo into two parts at an early stage of its life, it would survive and develop as two normal embryos.
正如一个世纪前的电力，我们无法想象宽带会带给我们多大用处。
As with electricity a century ago, we can barely imagine the applications that broadband will open up to us.
虽然这段话是在一个世纪前写下的，这些话语却非常准确地描绘了我们在这些日子里所处的环境和面对的挑战。
Though they were written a century or more ago, these words portray very accurately the situation or challenge in which we all find ourselves in these days.
我们能够在银河的心脏地带见证由爱因斯坦将近一个世纪前预言的时空弯曲吗？
And can we witness, at the heart of the Milky Way, the warped space and time predicted by Einstein nearly a century ago?
尤其在《玛丽·巴顿》这本书的前几章，是对19世纪40年代英国工业时代工人苦难的一个感人回应。
Mary Barton, particularly in its early chapters, is a moving response to the suffering of the industrial worker in the England of the 1840s.
不久前的一个晚上，在柏林购物的45岁邮政职员安妮·凯瑟琳·纳格尔(Annekathrin Nagel)说：“我们喜欢下班后能轻松地逛逛街购购物。”
'We enjoy being able to take a relaxed shopping trip after work,' says Annekathrin Nagel, a 45-year-old postal worker out shopping in Berlin one recent night.
我爱你。如果非要在这段爱情前加上一个期限的话，我希望是一万年。
I love you. If you have to give a time-limit to this love, I hope it is 10 thousand years.
开始一段新的求职之旅前，一个崭新的重点展示你的工作成就的个人简历是十分必要的。
An updated resume that focuses on your accomplishments is necessary when beginning a new job search.
一个高大又亲切的圣诞老人站在其中一扇窗户前，留着长长的白胡子。
A big kind Father Christmas was standing in one of the windows, wearing a long white beard.
高雅是他的座右铭：3件套装西服，天鹅绒马甲和圆熟的口才——他离开西弗吉尼亚前曾是一个优秀的非神职布道者。
Dignity was his byword: three-piece suits, velvet waistcoats and the rolling oratory of a man who had been a fine lay preacher before he left West Virginia.
我一度感觉自己是个外人，但几个星期前，我向一个同伴Cynthia提议，用我的再生纱线来换她传说中的木质拆线刀。
I felt like an outsider for a little while, but a few weeks ago, I asked one of the knitters, Cynthia, to barter one of her fabulous turned-wood seam rippers for some of my recycled yarn.
此举让出版商得以用彩色印刷出毕加索的60个作品，这对于前两部传记中的黑白印刷是一个很大的进步。
This has permitted the publisher to illustrate 60 of Picasso's works in colour, a big advance on the first two volumes which were illustrated entirely in black and white.
这对任何一个16岁大的孩子来说都是一个大新闻，但是对于一个一年前还几乎看不见的年轻女孩来说却是一个巨大的惊喜。
That's big news for any 16-year-old, but it's a huge deal for a young girl who a year ago was nearly blind.
在许多墨西哥人的婚礼上，在第一支舞曲前，来宾们围绕着新婚夫妇站成一个心形的圈。
Guests at many Mexican weddings gather around the couple in a heart-shaped ring at the reception, perhaps before the first dance.
在中学毕业前两年，我上了一个缝纫和设计的课，以为自己会继续学习时装设计课程。
Two years before graduating from secondary school, I took a sewing and design course thinking that I would move on to a fashion design course.
一个炎热的夏日，狐狸走过一个果园。他停在一大串葡萄前。
One hot summer day, a fox was walking through an orchard. He stopped before a bunch of grapes.
40年前，“地球日”作为一个“宣教日”始于美国——在这一天对人们讲解我们的星球在环境方面遇到的挑战。
Forty years ago, Earth day began in the United States as a "teach-in" -a day to educate people about the environmental challenges facing our planet.
于是，在你注意到其出现前，这个消极思想已经消逝并被一个积极的、自我肯定的方式取代。
Then before you know it the negativity will be gone and it will be replaced with a positive and self-affirming way of being.
为了帮助扭转这一趋势，家长可以对孩子坐在电视机前的时间设定一个限制，或者限制他们用计算机娱乐的时间。
To help reverse the trend, parents can set a limit on how much time children spend sitting in front of the television or using their computers for entertainment.
为了帮助扭转这一趋势，家长可以对孩子坐在电视机前的时间设定一个限制，或者限制他们用计算机娱乐的时间。
To help reverse the trend, parents can set a limit on how much time children spend sitting in front of the television or using their computers for entertainment.
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