I go hiking about twice a month.
我大概每个月去两次远足。
Their annual death rate is about twice that of the global average.
他们的年死亡率大约是全球平均水平的两倍。
The European Union's level of international co-authorship is about twice that of the United States, Japan, and India.
欧盟的国际合作程度大约是美国、日本和印度的两倍。
This impact released an enormous amount of energy, excavating a crater about twice as large as the lunar crater Tycho.
这次撞击释放了大量的能量，挖出了一个大约有月球上的第谷陨石坑两倍大的陨石坑。
一个月大概看两次。
It's been breaking down about twice a week.
因为差不多每个星期它都会坏两次。
The figure of A is about twice as much as that of B.
A的数字是B的两倍。
Often the distance between the rows is about twice their height.
（积云）云间距离通常大约是条云本身高度的2倍。
When my turn came to organize ameal, I spent about twice as much。
而轮到我组织饭局时，我花了大约两倍的钱。
But if you can only drive automatic, expect to pay about twice as much.
但是如果你只会驾驶全自动档的汽车，那么价钱就是之前的两倍或是更高。
Those in the top 1 percent of the income distribution enjoy about twice that gain.
而那些收入排在前1%的人，其得到的却是前者的两倍之多。
There are incongruities: Saudis are about twice as rich per person as Bulgarians.
欧共体一位官员提出这样的疑问。因为存在矛盾：沙特阿拉伯人均比保加利亚人富有两倍。
In all, they might consume about twice as many calories as a normal-weight monkey.
总之，它们可能摄入了两倍于正常体重猴子的热量。
It can be shown that the Sun's pull on the Moon is about twice the Earth's pull on the Moon.
它能显示出太阳拉扯月球的力量大约是地球拉扯月球的两倍。
Plants that burn coal produce about twice as much carbon dioxide as generators using gas.
与发电机使用天然气相比，燃煤电厂烧煤所产生的二氧化碳是前者的两倍。
Air temperatures in the Arctic are rising about twice as fast as in the rest of the world.
北极的气温上升比世界其他地区大约快一倍。
The seabed in question is 740000 sq km in size, about twice as large as Japan's land area.
争议海底面积达74万平方公里，相当于日本陆地面积的两倍。
In much of the OECD youth-unemployment rates are about twice those for the population as a whole.
大部分经济合作与发展组织会员国的青年失业率大约是所有会员国人口加在一起时的两倍。
Curiosity is about twice as long and more than five times as heavy as any previous Mars rover.
好奇号的长度是之前火星探测器的两倍，重量则超出了四倍多。
The strength of the sun's magnetic field is typically only about twice as strong as Earth's field.
太阳的典型磁场强度只有地球磁场强度的2倍。
Urinary incontinence is about twice as common in women than men, and its likelihood rises with age.
尿失禁发生在女性身上是发生在男性身上的大约两倍，并随着年龄的增加可能性上升。
High-speed rail train runs at over 250 km per hour, about twice the normal speed of a regular train.
高铁运行的速度超过每小时250公里，大约是普通列车正常运行速度的两倍。
It is about the size of Jupiter, but 20 times that planet's mass, making it about twice as dense as lead.
它大约和木星一样大，但是却是木星质量的20倍，这使它有铅密度的两倍。
Smokers are about twice as likely to get the lung infection and die from it, compared with non-smokers.
相较而言，吸烟者得肺部感染以及死于肺结核的可能性大约是不吸烟者的两倍。
Smokers are about twice as likely to get the lung infection and die from it, compared with non-smokers.
相较而言，吸烟者得肺部感染以及死于肺结核的可能性大约是不吸烟者的两倍。
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