单词:geotechnical system
地质工学系
单词:geotechnical system 相关文章
This is the VOA Special English Technology Report. 这里是美国之音慢速英语科技报道。 Builders in developing countries are often not required to build strong buildings. So, when a disaster strikes, the damage is often widespread. 发展中
发表于:2018-12-07 / 阅读(130) / 评论(0)
2011年VOA慢速英语(三)月