Calcareous sandstone
[機] 鈣質砂巖
?? 詞語組成解析
n. 鈣化軟骨\\n[化] 石灰質的; 含鈣的
sandstone
['s?nd?st?un]
n. 砂巖;砂石;
??? 情景例句
Hold it, Robbie!
停停， Robbie！
To know the disease is half the cure.
找出病根等于治愈了一半。
the waters flow more quietly, and in the end, without any visible break,
河水流得平緩起來，最后連綿不斷地