Yellow fever is endemic in tropical regions of Africa and South America, where 44 countries (33 in Africa and 11 in South America) are considered to be at risk.
黄热病在非洲和美洲的热带地区流行，据认为44个国家(33个在非洲，11个在南美洲)存在风险。
Cocona fruit is another tropical fruit found in the mountainous regions of South America.
可可果是在南美洲山区发现的别一种热带水果。
Indica rice thrives in tropical regions of Asia and South America, raising worldwide production more than 20 percent by 1970.
籼稻在亚洲和南美洲的热带地区的蓬勃发展，使1970年全球产量增加了百分之二十。
Small genus of densely tufted annual herbs; north temperate regions and South America and tropical Africa and Asia.
一个紧密丛生的一年生草本植物小属；产于北温带和南美及热带非洲和亚洲。
In the tropical regions of India, Africa, and South America are used to build fiber rattan suspension bridge, the vines are tied to trees on both sides of the river or valley or rock.
处于热带地区的印度、非洲、和南美洲纤维藤被用来建成悬索桥，这些藤被系在小河或山谷两边的树上或岩石上。
In the tropical regions of India, Africa, and South America are used to build fiber rattan suspension bridge, the vines are tied to trees on both sides of the river or valley or rock.
处于热带地区的印度、非洲、和南美洲纤维藤被用来建成悬索桥，这些藤被系在小河或山谷两边的树上或岩石上。
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