With the development of science and technology, robotics in medicine; agriculture; industry; playing an increasingly important role in 1939, the first robot on display in New York, it is a robot that ...
翻译英语作文各国争相开发南极深埋地下的矿产资源，必然会破坏南极表层冰盖，甚至会导致南极冰层出现大面积的破裂，而这些破裂在