无法控制

After trying in vain to control the unruly class, the young and inexperienced instructor had to admit that he was at eth end of his tether.

试图控制这个难弄的班级但不见生效后，这个缺乏经验的年轻教师不得不承认，他已无法可施。

Generally, the treatment group and the control group had positive conceptual change,but there still has some misconcepts hard to let students change in a short period,such as Linear A－Linear B.

整体看来，实验组和控制组在概念皆呈正向的改变。但是仍有一些迷思概念在短时间无法让学生产生良好的改变，例如线性迷思。

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。