元音交替

Linguistics A set of vowels or diphthongs related by ablaut, as in sing, sang, sung, and song.

一组交替元音：由元音联系成的一组元音或复合元音，如 sing，sang，sung 和 sony

In standard English one finds three kinds of iterative:the simple ones like hush-hush;those with vowel gradation like ding-dong;and the rhyming ones like handy-dandy.

在标准英语中，我们可以发现有三种表示动作或声音反复的词；简单重复的，如hush-hush；元音交替的，如ding-dong；押韵的，如handy-dandy。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。