The price of eggs has risen to double its original one.
鸡蛋的价格已上涨到原来的两倍。
Separate the eggs, beat the yolks and sugar in a mixer until pale to double the size.
把鸡蛋分开，把蛋黄和糖放在搅拌机里打至颜色发白，搅拌至原来两倍体积。
Another experiment demonstrated that physical exercise, which was sufficiently vigorous to double the rate of breathing, had no effect on the frequency of yawning.
另一项实验表明，体育运动——尤其是剧烈的运动——可以使呼吸频率增加一倍，但这对打哈欠的频率没有影响。
Lightbox, Inc., owns almost all of the movie theaters in Washington County and has announced plans to double the number of movie screens it has in the county within five years.
Lightbox公司几乎拥有华盛顿县所有的电影院，并宣布计划在五年内将该州的电影院数量增加一倍。
They only have one room left: you'll have to double up with Peter.
他们只剩下一个房间，你只好与彼得合住了。
We'll have to double up on books; there aren't enough to go around.
因为书不够人手一册，我们只好合用了。
The lids of the casserole dishes are designed to double up as baking dishes.
这些砂锅盖子的设计使它们可以兼作烤盘。
Worldwide use of paper is expected to double in the next 40 years.
全世界的纸张使用量预计在未来40年内翻一番。
The network is expected to double in length again, to 70,000 kilometers, by 2035.
预计到2035年，该路线的长度将再次翻倍，达到7万公里。
The state's proposed Forest Carbon Plan aims to double efforts to thin out young trees and clear brush in parts of the forest.
该州提出的森林碳计划旨在加倍努力，在部分森林中剪除幼树并清除灌木丛。
When confronted with an uncomfortable set of facts, the tendency is often to double down on their current position rather than publicly admit to being wrong.
面对一系列令人不舒适的事实，人们往往更加坚持他们目前的立场，而不是公开承认自己是错的。
Mr. Lin, an accountant at New Link, told a local newspaper: "If I use a calculator when I'm sleepy, I have to double-check my work for fear of making mistakes, so it takes longer."
林先生是 New Link 的一名会计，他对当地一家报纸说：“如果困倦的时候使用计算器，我必须得复核一遍工作，以免出错。所以耗费的时间也就更久。”
I think it's time to double down.
我认为这时该加倍努力。
We need to double food supply by 2050.
我们需要到2050年把食品供应加倍。
"Now I have to double everything," he says.
“现在我要加倍珍惜所有这些，”他说。
Volkswagen is aiming to double its US sales.
大众也正在打算将它在美国的销售量翻番。
And efficiency is expected to double again by 2020.
并且这一效率有望在2020年提高两倍。
By 2013 consumption in Brazil is expected to double.
到2013年，巴西的消费量将翻番。
The price of eggs has stiffened to double its original one.
鸡蛋的价格已上涨到原来的两倍。
The figure is expected to double within a generation.
而预计在一代人的时间内这一数字将翻倍。
It ruins a book to double back the pages as a bookmark.
把书页折起来当作书签用会把书弄坏的。
Our goal is to double the user base in the field trial.
我们的目标是在试验阶段，增加一倍的用户。
Globally, vehicle ownership is forecast to double by 2020.
据预测，到2020年，全球范围机动车拥有量将翻一番。
Globally, vehicle ownership is forecast to double by 2020.
据预测，到2020年，全球范围机动车拥有量将翻一番。
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