In the tropics plants grow to huge proportions.
在热带，植物长得很高大。
Even within the tropics, language diversity varies widely.
即使在热带地区，语言的多样性也有很大的差异。
The larger the iceberg, the slower it melts, even if it is towed through the tropics.
冰山越大，融化的速度就越慢，即使它被拖着穿过热带地区。
It ranges from sea level in the Polar Regions to 4,500 meters in the dry subtropics and 3,500-4,500 meters in the moist tropics.
它的范围包括海平面的极地地区、4500米高的干燥的亚热带地区以及3500-4500米高的潮湿的热带地区。
The mightiest are native to North America, but big trees grow all over the globe, from the tropics to the boreal forests of the high latitudes.
最高大的树原产于北美，但大树遍布全球——从热带到高纬度的北方森林。
In the tropics, the valleys appear to be more favorable because they are less prone to dry out, they have less frost, and they have deeper soils.
在热带地区中，山谷似乎更有利于树木生长，因为山谷更加不容易干涸、较少结霜，并且拥有更深的土壤。
Old trees that don't grow in the tropics grow seasonally, and they grow faster early in the year in the springtime than they do later in the year.
所有不生长在热带地区的老树都是季节性生长的，它们在每年初的春天时节长得较快，之后几年长得较慢。
Some researchers have argued that speciation rates, both terrestrial and marine, could be much higher in the tropics, making them a "cradle" of biodiversity.
一些专家认为，在热带地区的陆地和海域，物种形成的机率更高，这样就使热带地区成为了生物多样性的摇篮。
Often the cheapest way to provide irrigation water in the dry tropics is through small-scale projects, such as gathering rainfall in depressions and pumping it to nearby cropland.
在干旱的热带地区，提供灌溉水的最低成本的方法通常是建造小规模的工程。例如，在洼地收集雨水，然后将其抽调至附近的农田。
This is particularly true for trees in the middle and upper latitudes, which tend to attain greater heights on ridges, whereas in the tropics the trees reach their greater heights in the valleys.
这种情况在中高纬度地区的树木中尤其常见，这些树木往往在山脊上长得更高；而热带地区的树木则往往在山谷中会长得更高。
You may bring global temperatures back to pre-industrial levels, but the risk is that the poles will still be warmer than they should be and the tropics will be cooler than before industrialisation.
全球气温可能会回到工业化前的水平，但风险是两极的温度仍将高于正常水平，而热带地区的温度将比工业化前的要低。
The US National Center for Atmospheric Ressearch has already suggested that the proposal to inject ulphur into the atmosphere might affect rainfall patterns across the tropics and the Southern Ocean.
美国国家大气研究中心已经表示，向大气中注入硫的提议可能会影响整个热带和南大洋的降雨模式。
The US National Center for Atmospheric Research has already suggested that the proposal to inject sulphur into the atmosphere might affect rainfall patterns across the tropics and the Southern Ocean.
美国国家大气研究中心已经表示，向大气中注入硫的提议可能会影响整个热带和南大洋的降雨模式。
He had always wanted an adventurous life in the tropics.
他一直都想要一种在热带丛林里的冒险生活。
Less solar energy is lost in evaporation at the frigid poles than in the tropics.
与热带地区相比，在寒冷的两极蒸发中损失的太阳能更少。
Calenture is a fever formerly supposed to affect sailors in the tropics.
热病是一种发烧型疾病，以前认为会影响热带地区的水手。
The current onslaught is mainly in the tropics.
现在的难题主要出现在热带。
In the tropics, they don't need winter clothing.
在热带人们不需要冬季服装。
Celine Dion's private island is not in the tropics.
席琳·迪翁的私人岛屿不在热带地区。
What is it about the tropics that so fosters biodiversity?
是什么让热带地区的生物物种这么繁多呢？
In the tropics numerous glaciers have disappeared altogether.
热带地区大量的冰川已经一起消失。
Animals endemic to mountains in the tropics may be among the most vulnerable.
热带山地上特有的生物可能是最脆弱的。
The same events brought warm air from the tropics to Greenland, so it was getting warmer.
而同样的‘阻塞事件’却将热带地区的暖空气带向了格陵兰岛，所以这一地区就变得更加温暖。
They are most popular in the tropics, where they grow to large sizes and are easy to harvest.
热带地区最受欢迎，在那里昆虫的个头很大并且容易得到。
Most of the tropics, sub-tropics and even lower mid-latitudes are too hot to be inhabitable.
大多数的热带、亚热带地区甚至是更低的中纬度地区将由于太热而变得无法居住。
Papers published last year provide evidence that influenza viruses mix and mutate in the tropics.
去年发表的论文提供了证据表明流感病毒在热带地区混合与突变。
Papers published last year provide evidence that influenza viruses mix and mutate in the tropics.
去年发表的论文提供了证据表明流感病毒在热带地区混合与突变。
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