用塞子塞住

If you want to fill a sink or bathtub with water, you need to do one thing first and that's stopper or plug up the drainpipe. Later, when you unplug the stopper, the used water will go rushing out down the drain.

如果你想给一个水槽或者浴缸放满水，你要做的第一件事是你需要用一个塞子塞住排水管，然后，当你拔掉塞子，水又将从排水管里流出。

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。