击水声

Extract 3 'Sometimes we came upon a station close by the bank, clinging to the skirts of the unknown, and the white men rushing out of a tumbledown hovel, with great gestures of joy and surprise and welcome, seemed very strange-- had the appearance of being held there captive by a spell. The word 'ivory' wouldring in the air for a while - and on we went again into the silence, along empty reaches, round the still bends, between the high walls of our winding way, reverberating in hollow claps the ponderous beat of the stern wheel. Trees, trees, millions of trees, massive, immense, running up high; and at

有时我们会经过紧挨着河岸，紧挨着那片未知地域边缘的一个贸易站，白人们从一间摇摇欲坠的茅屋里冲出来，打着很多表示高兴、惊奇和欢迎的手势，看起来十分古怪—看上去像是被符咒镇在那儿当了俘虏，'象牙'这个词照例会在空气中回响一阵子—然后又一次驶入寂静，沿着一片没有人烟的水道，绕过一个个平静的转角，穿过蜿蜒航程中的峭壁，船尾外轮沉重的击水声空洞地回响着。

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。