人口年龄金字塔的英文怎么说
人口年龄金字塔的英文：population pyramid
population是什么意思：
n. 人口；全体居民；动植物总数
[*]The population is on the decline.
人口在减少。 [*]The population is dwindling.
人口在逐渐减少。[*]Attach importance to the problem of population aging (an aging population )
重视老龄化问题[*]There was a swell in the city's population.
该市出现过人口膨胀。 [*]The town has a population of ten thousand.
这个镇有一万人口。 pyramid是什么意思：
n. 金字塔；角锥体
v. （使）渐增；（使）成金字塔状
[*]You mean that pyramid scheme?
你是说那个金字塔计划？[*]These families at the Base of a socioeconomic pyramid.
这些是位于社会经济结构底部的家庭。[*]The base of a triangle,pyramid,etc
三角形的底边、角锥体的底面等.[*]We set off for the pyramid at dawn.
我们于拂晓出发去参观金字塔。[*]Scientists are trying to crack the odd signs in the great pyramid.
科学家们尝试破译大金字塔内的奇特符号.
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