chert
n. [岩]燧石;黑硅石;角岩; n. (Chert)人名;(罗)凯尔特
n.[矿]燧石,黑硅石
affricative camcorder dognap endemic goldbeater imperceptible leif下载迅蛙App
lolian2#163.com
n. [岩]燧石;黑硅石;角岩; n. (Chert)人名;(罗)凯尔特
n.[矿]燧石,黑硅石
affricative camcorder dognap endemic goldbeater imperceptible leif