I resolved to keep them fast and let Friday go in twice a day to them, to supply them with necessaries.
我决计把他们关得牢牢的，叫星期五每天到他们那里去两次，把生活必需品送给他们。
This is because you halved the amount of light being let through the aperture opening, but let in twice as much light by keeping the shutter open longer.
这是因为前一组你用了一半的光圈，而后一组用了一半的快门时间。
The phenomenon of discharging in twice of underwater wire exploding is discovered by investigating the time characteristics of pulsed discharging current and voltage.
通过测量水中铜丝电爆炸的电流、电压波形发现水中高压放电存在着二次放电现象。
Professors didn't expect a woman to become a good engineer and didn't dedicate much time to her, so she had to put in twice the effort to obtain the same grades as her male classmates.
教授们也对女性成为一个工程师不抱太大的希望，并没有对她花太多的时间，因此她必须要付出两倍的努力去获得与其他男同学同样高的分数。
Urban Fare, a classy grocery store in the Yaletown district, offers decorated loaves of artisanal bread flown in twice a week from the famous Poilane bakery in Paris, for a whopping $85 apiece.
后者则是一家位于耶鲁镇区的高档食品店，供应装饰精美的手工艺品面包，面包从巴黎著名的保兰面包店空运而来，一周两次，每块售价高达85美元。
In one study, light smokers were found to be more than twice as likely to get cataracts as non-smokers.
一项研究表明，轻度烟民患白内障的比例是不吸烟者的两倍以上。
Twice in the twentieth century, large meteorite objects are known to have collided with Earth.
"在二十世纪，已知有两次大型陨石与地球相撞的案例。
You can allow for extra pepperoni by having pepperoni appear as a topping twice in the same pizza.
你可以额外添加意大利辣香肠，在同一份比萨饼上两次添加意大利辣香肠。
In 1998, some of these countries already exported more than twice their 1990 volumes and imported more than five times their 1990 volumes.
1998年，其中一些国家的出口量已经是它们1990年出口量的两倍多，而进口量是1990年的五倍多。
The level of formaldehyde gas in her kitchen was twice the maximum allowed by federal standards for chemical workers.
她厨房的甲醛气体含量是联邦为化工工人设立的最大值标准的两倍。
Spurred on by funding policies, half of the European research articles had international co-authors in 2007, this is more than twice the level of two decades ago.
在资助政策的推动下，2007年有一半的欧洲研究论文有国际合作作者，这是20年前水平的两倍多。
In dry Mediterranean areas, tourists use almost twice as much water as local people when swimming in the pool.
在干燥的地中海地区，游客在游泳池游泳时的用水量几乎是当地人的两倍。
This "once in a lifetime" event actually may take place twice in some folks' lives.
这种“生平仅见”的事件实际上有可能在一些人的生活中发生两次。
Women are twice as likely to suffer from severe stress and anxiety as men, according to a 2016 study published in The Journal of Brain & Behavior.
根据2016年发表在《大脑与行为》期刊上的一项研究，女性遭受严重压力和焦虑的可能性是男性的两倍。
A French couple may touch 100 times in half an hour while an American couple may only touch twice!
法国夫妇半小时内可能会接触100次，而美国夫妇只会接触两次！
Born Maria Sklodowska in Poland in 1867, she is famous for her work on radioactivity, and was twice a winner of the Nobel Prize.
她于1867年出生在波兰，原名玛丽亚·斯克洛多夫斯卡，以放射性研究而闻名，曾两次获得诺贝尔奖。
We show her in one of your chairs, her back properly supported, feeling full of energy, typing twice as quickly.
我们让她坐在你的一把椅子上，她的背部得到了适当的支撑，这让她感觉充满活力，打字速度加快了一倍。
This train would stop twice more in the suburbs before rolling southeast toward Baltimore.
这辆火车在朝东南开往巴尔的摩前将在郊区多停两站。
It takes twice as much effort to breathe during sleep because of greater resistance to airflow in the airways and changes in the efficiency of the muscles used for breathing.
由于睡眠时呼吸道中的气流阻力更大，并且用于呼吸的肌肉效率有变化，所以在睡眠时呼吸需要用两倍的力气。
Heavy water is heavy because the hydrogen in it weighs twice as much as ordinary hydrogen (it has a proton and a neutron in its nucleus, instead of just a proton).
重水之所以重是因为水中氢的重量是普通氢的两倍（它的原子核中有一个质子和一个中子，而不仅仅是一个质子）。
During the decade before the economic crisis, spending on legal services in America grew twice as fast as inflation.
在经济危机前的十年里，美国法律服务支出的增长速度是通货膨胀的两倍。
Once or twice March had caught sight of the white tip of his brush, or the ruddy shadow of him in the deep grass, and she had let fire at him.
有一两次，马奇看见了他刷子的白色尖头，或是他在深草丛中的红色影子，她便朝他开火。
They cited a study presented earlier this year of 249 pairs of parents and their children in which twice as many children as parents wanted rules on what parents could share.
他们引用了今年早些时候的一项研究，这项研究面向249对父母及其孩子进行，其中希望对父母分享的内容进行规定的孩子数量是父母的两倍。
Even in eighth grade, American kids spend more than twice the time Korean kids spend playing sports.
即使到了八年级，美国孩子花在运动上的时间也是韩国孩子的两倍多。
Some legislators advocate mandating a sentence of life in prison for anyone who, having twice served sentences for serious crimes, is subsequently convicted of a third serious crime.
一些立法者主张对那些因严重罪行而两次服刑后又被判第三次严重罪行的人判处终身监禁。
Next time, when we want to use our laptops or our smartphones in public places which offer free WiFi networks, please think it twice or take safe measures before using them.
下次，当我们想在提供免费WiFi网络的公共场所使用笔记本电脑或智能手机时，请三思而后行或者在使用之前采取安全措施。
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