911查询·英语单词
名词长石
\u0064\u0061\u006E\u0063\u0069\u002E\u0039\u0031\u0031\u0063\u0068\u0061\u002E\u0063\u006F\u006D
noun
1. any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium
Synonym: felspar