他们说在热带国家，人们在十几岁就结婚。
They say that in tropical countries people usually marry in their teens .
现在是难得的，在英国，但发现较为普遍，在热带国家。
It is now rare in the UK but is found more commonly in tropical countries.
现在是时候在一个热带国家点燃奥运主火炬。
It is time to light the Olympic cauldron in a tropical country.
在很多热带的国家，红眼病是非常流行的。
在热带地区的许多国家，仍然允许使用DDT。
Many countries, especially in the tropics, still permit the use of DDT.
我们都听说过在许多贫穷热带国家进行的旨在消灭疟疾的战斗。
We've all heard of the fight to combat malaria in mostly poor, tropical countries.
我们都听说过在许多贫穷热带国家进行的旨在消灭疟疾的战斗。
We've all heard of the fight to combat malaria in mostly poor, tropical countries.
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