到18世纪40年代，大约是婴儿死亡率下降的时候，这种饮料已经很常见了。
By the 1740s, about the time that infant mortality was dipping, the drink was common.
为什么我们要沉迷于这样一个神话：这种生产方式所产生的神话般的财富将在适当的时候为所有人所享用？
Why do we indulge in the myth that the fabulous wealth generated by this mode of production will in the fullness of time become available to all people?
约翰以前上数学预科班的时候会有这种渴望。
John had sometimes experienced this hankering at maths prep.
这种祖先物种可能是在岛屿相连的时候进化而来的。
This ancestral species might have evolved at a time when the islands were connected.
这种情况发生在其他国家自身科研能力取得重大进展的时候。
This occurs at a time when other nations have made significant gains in their own research capabilities.
我发现，拥有这种瞬间转移注意的能力通常是件好事，比如，在公共交通工具上消磨时间的时候。
I found that this ability to instantly shift my attention was often a good thing, like when passing time on public transportation.
一所保存虚假声明记录的学校说，这种做法至少可以追溯到世纪之交——不管怎么说，那是他们开始保存记录的时候。
One school that keeps records of false claims says that the practice dates back at least to the turn of the century—that's when they began keeping records, anyhow.
这种品种是如此的美丽，但它还是毛虫时候的样子却让人大为一惊。
Beautiful as this species is, the big surprise is in the caterpillar stage of its life.
在这种情况下，父母会把自己最好的表现保留到孩子即将长出羽毛的时候。
In that case, the parent will save its best performances until just before the babies get their feathers.
我们的航空公司仍然不安全，当你不安全的时候就会发生这种情况。
Our airlines still aren't secure, and this is what happens when you're not secure.
当你对某个领域非常感兴趣的时候，你必须培养这种兴趣：对所有细节的好奇心。
That's partly what you have to develop when you get interested in a field: some sense of curiosity about all the details.
我认为是她职业生涯早期，在俄国的时候的一些事情使她产生了这种感觉。
I think that feeling is exemplified by something that happened earlier in her career, in Russia.
在这种情况下，期望个人保持注意力是一种奢侈，尤其是在课堂上后排学生几乎看不见黑板的时候。
It is a luxury in such circumstances to expect individual attention, especially in classes where students in the back rows can hardly see the blackboard.
结对编程的特征之一就是，如果你正确地使用了这种方法，那么在一天结束的时候，你的屏幕上应该会沾满油腻的手指印。
One of the clichés of pair programming is that if you're doing this method right, your screen should be covered with greasy finger-marks by the end of the day.
当我们说到矛头的时候，我们所指的都是一块被加工成尖头的石块，在这种情况下，这一石块很可能是要接在矛上的。
When we talk about a point we are referring to a piece of stone that's worked to a sharp point, in this case probably to be attached to a spear.
就在今年早些时候，欧洲议会投票通过了一项法案，该法案将阻止食品业巨头采取不公平的交易行为，因为这种行为会导致生产过剩，从而产生浪费。
Just earlier this year, the European Parliament voted in favor of legislation that would stop grocery giants from unfair trading practices that result in overproduction, thus creating waste.
也许更早的时候，在欧亚大陆内部的大草原上就出现了独特的游牧文化，这种文化主导了该地区几千年的历史。
Perhaps even earlier, there had emerged on the steppes of Inner Eurasia the distinctive types of pastoralism that were to dominate the region's history for several millennia.
“当我看到他的时候，我的心都碎了，这种心情无法言说。”他的兄长徐林福回忆起2007年他第一次去那里时说。
"I was so heartbroken when I saw him, I cannot describe it." said his elder brother, Xu Linfu, recalling his first visit there, in 2007.
在有满月出现的时候，这种夜间出没的啮齿类动物小心地呆在它的洞里。
When there is a full moon, this nocturnal rodent is careful to stay in its burrow.
有时候跳这种舞的人拿着色彩鲜艳的围巾。
Sometimes the people doing this dance hold brightly coloured scarves.
浸润式学校正在取得进展，因为如果在孩子们小的时候就教他们说这种语言，那么他们长大后直到未来会一直说这种语言。
Progress is being made through immersion schools, because if you teach children when they're young, it will stay with them as adults and that's the future.
这种方式也常用于在新老销售代表不得不花大量时间来熟悉新产品和服务体系的时候。
This approach is also often used when new and old sales representatives have to spend a lot of time getting familiar with new products and service systems.
要真正体验这种装饰玻璃的美，你应该在有光通过它的时候看它，特别是在阳光通过的时候，这就是为什么彩色玻璃通常用于窗户上。
To truly experience the beauty of this decorative glass you should see it with light passing through it, especially sunlight, which is why stained glass is usually used for windows.
当你们阅读的时候，我希望你们思考一下为什么这种想法与他那个时代的读者有关。
When you are reading, I want you to think about that and why that kind of thought would be relevant to the readers of his time.
我们永远也不会知道这种计算能力是何时、如何发展起来的，但可以肯定的是，在人类形成半永久定居点的时候，这种计数法已经发展得很好了。
It will never be known how and when this numeration ability developed, but it is certain that numeration was well developed by the time humans had formed even semi-permanent settlements.
虽然这个办法有时候很无聊、很累人，但是只有用这种办法你才能在英语上取得进步。
Only in this way can you make progress in English, though it is sometimes tiring and boring.
你可以通过这种方式弄清自己的生物节奏，即在一天内的不同时间学习一定行数的诗句，然后看看什么时候记住的诗句最多。
You can do this by learning a set number of lines of poetry at different times of the day and seeing when most lines stick.
她说，这可能会让老鼠更好地记住它们早些时候释放了机器人，并希望机器人在它们被困时回报这种恩惠。
This could lead to the rats better remembering having freed it earlier, and wanting the robot to return the favour when they get trapped, she says.
这时友谊就会淡去，我们有理由相信这种事情会比以往任何时候都要频繁发生。
That's when friendships fade, and there's reason to believe it's happening more than ever.
星巴克已将“西雅图最佳”牌咖啡的销售权卖给了汉堡王，后者将在今年晚些时候开售这种咖啡。
Starbucks has sold rights to its Seattle's Best coffee brand to Burger King, which will start selling it later this year.
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