乙:杨师傅! 甲:哎。乙:7月28日唐山、丰南一带发生强烈地震以后,大家对地震的安全常识非常关心,可是对一些问题还不那么明白?您能不能给我们讲一讲? 甲:好!你提的这个问题很适时,也很必要。不过我也讲不好,咱就一起研究吧!从哪谈起呢? 乙:您能不能先讲一下地震是怎么回事? 甲:可以。要谈地震是怎么回事,还得先从地球的内部物质运动及其构造谈起。地球是一个很大的实心椭球体,平均 B: Master Yang! A: hey. B: After the strong earthquakes in Tangshan and Fengnan areas on July 28, everyone is very concerned with the common sense of earthquake safety. However, we still do not understand some of the problems. Can you give us some details? A: Well, you mentioned This issue is timely and necessary. But I also say not good, let’s study together! Where to talk about it? B: You can not talk about the earthquake is how it happened? A: Yes. It is necessary to talk about what happened to earthquakes and to start with the internal material movement of the Earth and its structure. The Earth is a very large solid ellipsoid, on average