1. Andy Rundle said. "And let this be a lesson to everybody: Somebody's tried it, and it's not a good idea." 它对每个人而言都上了一课：有人已经尝试过那种方法了，那不是一个好主意。
2. "It has too many false positives to be useful, " says Rundle, a professor of physics, geology and engineering at U. 氡气预测系统有太多虚假的确实性，这导致它已经没有用处了。
3. University of California, Davis, Professor Dr. John Rundle said the complexity of earthquake requires that we study them as part of the full Earth system. 加利福尼亚大学戴维斯学院教授，约翰·兰德尔博士说地震的复杂性要求我们把它们作为整个地球系统的一部分去研究。
英英解释
n.
1. one of the crosspieces that form the steps of a ladder
