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。
If one chord holds twice as long or only half as long, then we have an irregular harmonic change--irregular rate of harmonic change.
如果某一个和弦持续的时间是两倍或者只有一半，那我们就有了不规则的和声改变——和声改变的不规则比率。
The scientists found that people who sip one to three drinks a day are about half as likely to suffer heart attacks as nondrinkers are.
科学家们发现，每天喝一到三杯酒的人患心脏病的几率是不饮酒者的一半。
There is no irritation caused by waiting for trains, buses or underground trains, standing in long patient queues, or sitting on windy plat forms, for as long as half an hour sometimes.
人们不会因为耐心排着长队等火车、公共汽车或地铁，或者坐在刮风的平台上长达半个小时而感到烦躁。
There is no irritation caused by waiting for trains, buses or underground trains, standing in long patient queues, or sitting on windy plat forms, for as long as half an hour sometimes.
人们不会因为耐心排着长队等火车、公共汽车或地铁，或者坐在刮风的平台上长达半个小时而感到烦躁。
He's not half as bad as he looks, for all he's so crabbed.
他并不像看上去的那么坏，尽管他脾气暴躁。
"Not at first, perhaps," said the Hatter, "but you could keep it to half-past one as long as you liked."
“也许一开始没有，”帽商说，“不过你想要多久就可以把时间保持到一点半。”
Whatever the cause, dinosaurs, as well as about half of all species on the planet, went extinct.
不管什么原因，恐龙以及地球上几乎半数以上的物种灭绝了。
Half of those surveyed say that the penalty should be as severe as that for drunk driving.
一半的受访者表示，处罚应该和对待酒后驾车一样严厉。
This break in Earth's history is marked by a mass extinction, when as many as half the species on the planet became extinct.
地球历史上的这次重大灾难以物种的大量消亡为标志；当时，地球上多达一半的物种都灭绝了。
On average, a platypus eats as much food as half of its own weight every day.
一只鸭嘴兽平均每天要吃等于自己体重一半的食物。
From the small number of impact craters that appear on Martian lava flows, one can estimate that the planet was volcanically active as recently as a half-billion years ago—and may be active today.
从火星熔岩流上出现的少量陨石坑中，我们可以估计，在5亿年前，这个星球上的火山还很活跃——也许现在依然活跃。
Most, however, do get up and walk around for a few seconds or for as long as half an hour.
然而，大多数人会站起来，四处走动，或长几秒钟或长达半个小时。
Copied books are as good as copyrighted ones, but they don't cost much, usually less than half the price.
复印书和正版书一样好，但它们的成本并不高，通常不到一半的价格。
As one person ironically put it in the comments section of Schwartz's online article, "As I was reading this very excellent article, I stopped at least half a dozen times to check my email."
正如一个人在施瓦茨的在线文章的评论部分中讽刺地指出的那样，“当我阅读这篇非常出色的文章时，我至少停下来六次来查看我的电子邮件。”
If they looked up, they would see the two Saturns crossing the sky every 1.6 days, appearing half as large as the moon.
这些外星人仰望天空时，他们将会看到两颗土星每隔1.6天，交替在天空中划过，大小只有月亮的一半大。
If you love Mr. Darcy half as well as I do my dear Wickham, you must be very happy.
要是你爱达西先生抵得上我爱韦翰的一半，那你一定会非常幸福了。
You get a good sampling at lunch, the same quality and some of the same items, for sometimes half as much as dinner.
你会在午餐时得到一份很好的样餐，一样的质量，一样的食材，但有时价格只有正餐的一半儿。
But with an operating margin of 5.9% it is only half as profitable as HP's other businesses.
但是其营业毛利率为5.9%，利润仅为惠普其他业务的一半。
China's reported surplus with the euro area is only half as big as the number published by European statistical offices.
中国报告的对欧元区盈余仅仅是欧洲统计局发布的数据的一半。
That's about half as much as humans have already added through burning fossil fuels over the last 200 years.
这相当于过去200年来人类燃烧化石燃料产生的碳量的一半。
The Atlantic ocean is only half as big as the pacific, but it was still very large.(*)
虽然大西洋只有太平洋的一半，但它也很大。
He's only half as smart as you, but he's making 10 times more money.
他只有你一半的聪明，却挣了你十倍的钱。
But you can see that drug companies tend to spend more than those in the tech sector. Google spends half as much as a big pharmaceutical firm.
但你可以看到，制药公司的研发投入往往比科技公司更多，谷歌公司在这方面的支出只及大型制药公司的一半。
Just 475 will be ordained this year, half as many as 40 years ago.
今年仅有475名牧师被正式任命，仅仅为40年前的一半。
All of this can be done, Mr Heydon believes, for about half as much as opening a new landbased mine.
海登相信，只要花费相当于一个陆地矿井一半的费用，所有这些就都可以实现。
"Consider that an a engine is half as strong as a B engine, and so on," says engineering professor Marlow Moser.
“想想一个A发动机只有B发动机的一半效力，其他的以此类推，”工程教授马洛•莫泽说。
"Consider that an a engine is half as strong as a B engine, and so on," says engineering professor Marlow Moser.
“想想一个A发动机只有B发动机的一半效力，其他的以此类推，”工程教授马洛•莫泽说。
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