这种疾病据说起源于热带地区。
热带地区的水域清澈诱人。
在热带地区夜幕降临迅速。
热带地区黑夜来得快。
身处热带地区意味着昆虫成了我们生活的一大部分。
Being in the tropics meant that insects formed a large part of our life.
我要到热带地区待上一两个礼拜。
这个热带地区的经济主要以农业为基础。
气候变化的影响可能会遍及整个热带地区。
The effects of climate change are likely to be seen across the entire tropical zone.
即使在热带地区，语言的多样性也有很大的差异。
与热带地区相比，在寒冷的两极蒸发中损失的太阳能更少。
Less solar energy is lost in evaporation at the frigid poles than in 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。
The larger the iceberg, the slower it melts, even if it is towed through the tropics.
我喜欢温暖的热带地区，但我也能住在气候不太冷的任何地方。
I like warm and tropical areas, but I also can live anywhere it's not too cold.
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。
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.
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。
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.
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。
Some researchers have argued that speciation rates, both terrestrial and marine, could be much higher in the tropics, making them a "cradle" of biodiversity.
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。
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.
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。
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.
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。
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.
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。
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.
我们之前提到了世界各地热带地区中珊瑚礁的衰落，即自然和人为（造成的）压力是怎样造成珊瑚礁退化，或者甚至在某些情况下，造成它们死亡的。
We've been talking about the decline of coral reefs in tropical areas all over the world—how natural and man-made stresses are causing them to degrade or in some cases, to die.
热带地区的语言远多于温带地区。
Far more languages are found in tropical regions than in mild zones.
许多超富集植物被发现于热带地区和亚热带地区，在那里，高浓度金属元素的积累可以为植物提供保护来对抗以植物为食的昆虫和细菌病原体。
Many are found in tropical and subtropical areas of the world, where the accumulation of high concentrations of metals may afford some protection against plant-eating insects and microbial pathogens.
"热带稀树草原位于热带地区，海拔较低，是一种稳定的生态系统，由广阔的草地和稀疏分布其中的树木或灌木组成，有些地区湿润，有些地区干燥。
Located in tropical areas at low altitudes, savannas are stable ecosystems, some wet and some dry consisting of vast grasslands with scattered trees or shrubs.
我们已经对珊瑚礁通常是在哪里形成的问题进行了讨论，它们是在热带或亚热带地区沿着浅海海岸的边缘形成的，而它们的数量正在以惊人的速度减少。
We've gone over where coral reefs are usually formed—along the edges of shallow ocean banks in tropical or subtropical regions, and the fact that they are declining at an alarming rate.
这些标本主要来自新热带地区。
热病是一种发烧型疾病，以前认为会影响热带地区的水手。
Calenture is a fever formerly supposed to affect sailors in the tropics.
热带地区大量的冰川已经一起消失。
In the tropics numerous glaciers have disappeared altogether.
蝙蝠隼是热带地区颇为常见的猛禽。
地球上的热带地区物种繁多。
席琳·迪翁的私人岛屿不在热带地区。
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