Even within the tropics, language diversity varies widely.

即使在热带以内，语言的多样性也是差异很大。

This plant only grows in the tropics.

这种植物只生长在热带地区。

The brown blotches of the benevolent skin cancer the sun brings from its reflection on the tropic sea were on his cheeks.

腮帮上有些褐斑，那是太阳在热带海面上反射的光线所引起的良性皮肤改变。

A facet of global warming is that the tropics are expanding.

全球变暖体现的一个方面是热带地区正在扩张。

There are few upwellings in the tropics, which are thus nutrient-poor.

热带地区很少有上升流，因此缺乏硝酸盐。

It is a borderland between the temperate zone and the tropics.

“那里属于温带和热带之间的交地区。”

In the tropics, the sun's rays strike the earth head on, and their strength is more or less constant all year round.

在热带地区，太阳光直射大地，全年的辐射强度大致稳定。

So in temperate climates, fewer mosquitoes end up carrying the infectious form of the parasite than in the tropics, and, as a result, eradicating malaria has just been easier to do in temperate places.

所以在温带地区，相比较热带地区，携带这种感染期寄生虫的蚊子更少，因此，在温带地区根除疟疾更容易些。

Also of course the water down in the tropics is very warm.

当然在热带地区下落的水滴是很热乎的。

You can find thunderstorms in different parts of the world, not just in the tropics.

你可以在地发现雷暴，不仅仅是在热带地区。

And one that's native to the tropics is now growing in the southern U.S.

一种原产于热带的乳草现在却生长在美国南部地区。

Well, one simple way is to follow what John Mew calls the tropic premise: “Rest the tongue on the palate with the lips sealed and the teeth in light contact for four to eight hours a day.”

一个简单办法就是遵循 John Mew 所谓的“向性处所”：“将舌头顶在上颚，轻轻闭紧嘴唇和牙齿，每天4~8个小时。”

When in reality, the tropics contain about 40% of area on Earth.

而实际上，热带地区面积约占全球面积的 40%。

Kim and Yoon have created the breezy feel of the tropics in each room.

二人将每间房都打造出了热带微风的感觉。

The subtopics get wet and dry seasons like the tropics but it's less extreme.

跟热带地区一样，亚热带地区也有干湿两季，但不像前者的这么极端。

In the sticky tropics, it could feel much worse.

在闷热的热带地区，情况可能会更糟。

It is difficult for somebody who has grown up in the tropics.

这对在热带地区长大的人来说很困难。

The oil comes from a palm tree that is only grown in the tropics.

这种油产自一种只生长在热带地区的棕榈树。

Insects are under fire from the poles to the tropics.

从极地到热带地区，昆虫都受到了攻击。

While tropic birds can survive at sea for months on end, others, like frigate birds, return to roost every night, so are a sure sign of nearby land.

热带的鸟能连续在海上生存数月，其他的，像军舰鸟，每天晚上会栖息地，这是附近存在陆地的信号。