| 1. | Sometimes two crops a year are taken in the humid tropics .
在湿润的热带地区有时一年种两季作物。 |
| 2. | These systems appear ecologically well adapted to the humid tropics .
这些系统对于潮湿热带地区表现良好的生态适应。 |
| 3. | When cultivated and stripped of their dense vegetative cover, soils of the humid tropics quickly lose their fertility .
当将厚密的植被除去并耕种时，潮湿热带地区的土壤就会迅速失去其肥力。 |
| 4. | W products used in outdoor th products in the humid tropics area
Th表示产品在湿热带地区使用。 |
| 5. | Forests come in all sizes and types - from the northern taiga to the scrub forests of arid regions to the rainforests of the humid tropics . they are found on moving glaciers
每个森林的大小和类型都各有不同：北面有针叶林乾旱地区有灌木林，而潮湿的热带地区则有热带雨林。 |
| 6. | Pushed out of northern temperate zones by ddt spraying and the draining of wetlands half a century ago , malaria remains entrenched in the humid tropics of asia
虽然在半个世纪前，在北方的温带地区通过喷洒ddt和排干沼泽的办法已经消灭了疟疾，但其在亚洲潮湿的热带地区却仍根深蒂固。 |
