新托福iBT词汇分类突破 – Unit 155

by 李笑来 on 2009/12/08

The Moon’s surface is covered with craters overlain by a layer of soil called regolith. Nearly all the craters were formed by explosive impacts of high-velocity meteorites.

  • crater [ˈkreitə] n. 环形山
  • overlie [ˌəuvəˈlai] v. 在……上面
  • regolith [ˈreɡəliθ] n.风化层
  • explosive [iksˈpləusiv] adj. 爆炸(性)的
  • impact [ˈimpækt] n. 冲击
  • velocity [viˈlɔsiti] n. 速率
  • meteorite [ˈmi:tjərait] n.陨星