Two geologists discovered that about half of the sand from the Grand Canyon was actually once part of the Appalachian Mountains.
两位地质学家发现，约半数的来自大峡谷的沙子实际上曾经是阿巴拉契亚山脉的一部分。
The move to renewables is picking up momentum around the world: they now account for more than half of new power sources going on line.
世界各地向可再生能源转移的势头正在加快：目前，可再生能源在已上线新能源中已经超过一半。
Nearly half of high-earning, college-graduate parents enrolled their children in arts classes before they were 5, compared with one-fifth of low-income, less-educated parents.
将近一半的高收入、大学毕业的父母在孩子5岁前就让他们上艺术课；而在低收入、教育程度较低的父母中，这一比例仅为五分之一。
Usually, if the tea is made in a teacup, boiling water should be added into the cup when half of the tea in it has been consumed; and thus the cup is kept filled and the tea retains the same bouquet.
通常，若是用茶杯泡的茶，在茶喝完一半之后就应该加开水，这样，茶杯就一直都是满的，茶的芳香也得以保留。
Now she spends about $200 to $300 a month on groceries, less than half of the $650 a month that she used to lay out.
现在，她每月在食品杂货上的花费约为200至300美元，不到她以前每月650美元支出的一半。
As well as supporting at least half of the world's species of plants and animals, these rain forests are home to millions of people.
这些雨林不仅支撑着世界上至少一半的动植物物种，而且还是数百万人的家园。
In little more than a decade, Argentina has become the world's leading exporter of honey, with nearly 90,000 tons a year sold to foreign markets, almost half of which is going to the United States.
在10年多的时间里，阿根廷已经成为世界上最大的蜂蜜出口国，每年有近9万吨蜂蜜销往国外市场，其中近一半销往美国。
Fewer than 4% of countries are responsible for more than half of the world's greenhouse gas emissions.
只有不到4%的国家要对全球一半以上的温室气体排放负责。
I'm so glad that I have finished nearly half of the test now.
我很高兴，我现在已经完成了将近一半的考试。
The boy lifted his arms and said happily, "Well, please give half of my blood to my little sister!"
男孩举起双臂，高兴地说：“那么，请把我的一半血给我的妹妹！”
We choose this hotel because the price for a night here is down to $20, half of what it used to charge.
我们选择这家酒店是因为这里一晚的价格已经降到了20美元，是以前价格的一半。
China had 899 national wetland parks by the end of 2020, and nearly half of the country's wetlands are protected by some level of government.
截至2020年底，中国已有899个国家湿地公园，并且近一半的湿地都受到各级政府的保护。
But it will be brightest in the second half of September.
而9月下半月将是它最明亮的时候。
By 2020 over half of Britain's millionaires may be female.
到2020年，英国可能有超过半数的富豪是女性。
And today, female politicians make up around half of the Swedish parliament.
到今天，瑞典议会有大约一半女性议员。
Almost half of the electricity generated by Maine comes from renewable sources.
缅因州产生的将近一半的电力来自于可再生能源。
These studies suggest that about half of these complications may be preventable.
这些研究表明，有近半数的并发症是可以预防的。
Almost half of those polled said they now use 'cheers' more often than' thank you '.
近一半的受访者称，相比于thankyou，他们现在更喜欢用cheers来表达感谢。
China is unlikely to see a "double dip" in its economy in the 2nd half of this year.
今年下半年，我国不太可能出现经济“二次探底”的情况。
Women are one half of the population and no country can afford to leave them behind.
妇女占人口的一半，没有任何国家能承受把她们抛在后面的恶果。
Brandt, who gets up at 6.30am, has already done an hour and a half of Ashtanga yoga.
习惯于在早上6点30分起床的布兰德已经进行了一个半小时的阿斯汤迦瑜伽。
The old owners get to share half of the profits and maintain a big say over the market.
而原先的业主则能从中分得一半的利润，并且保有主要的市场发言权。
After all, if all of us ate half as much meat, it would be like half of us were vegetarians.
毕竟，如果我们所有人都能减少一半的肉类摄取量，就好像有一半的人在吃素一样。
The navy wants to power half of its operations by nuclear and renewable energy within a decade.
他们希望在十年内用核能和可再生能源支撑一半的海军行动。
And rebuilding after the floods and tornadoes may deliver a fillip in the second half of the year.
而且洪水以及龙卷风后重建也可以刺激下半年的经济。
Since 2007, more than half of the world’s population has been living in cities, a first in history.
2007年以来，有超过一半的世界人口居住在城市，这在历史上尚属首次。
Since 2007, more than half of the world’s population has been living in cities, a first in history.
2007年以来，有超过一半的世界人口居住在城市，这在历史上尚属首次。
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