The line graph reveals the increase in the elderly population in Japan，Sweden and the US.In 1940 the population of people aged 65 or more stood at only 5% in Japan，approximately 7% in Sweden and 9% in ...

A large proportion of the tigers in that area will eventually die. 这个区域中的一大部分老虎最后都会死去。 They spent a proportion of their income on food. 他们在食物上花费一部分收入。 n.（某部分在总体中所占的）比例 英英释义：The proportion of one kind ...