limestone
/ˈlaɪmˌstoʊn/ 名词 B2中文: 石灰岩、灰岩、青石
- An abundant rock of marine and freshwater sediments; primarily composed of calcite (CaCO₃); and occurring in a variety of forms, both crystalline and amorphous. · a limestone viaduct
复数 limestones
在真实文章中学习limestone
注册免费账号后,在图书馆中把鼠标悬停在任何单词上即可看到意思,还能听朗读、收藏单词并按你的记忆安排复习,看到每本书你已经认识多少。