Alum earth
[化] 明礬頁巖; 含黃鐵礦瀝青質泥巖
?? 詞語組成解析
n. 明礬, 礬, 校友\\n[化] 明礬; 鉀鋁明礬
earth
[?θ]
n. 地球;陸地;泥土;獸穴;
vt. 把（電線）接地;蓋（土）;追趕入洞穴;
vi. 躲進地洞;
??? 情景例句
Did she accept your reasons for being late?
她是否接受你遲到的理由？
How much do I owe you?
我欠你多少錢？
I went on walking, bending down because the roof of the cave was not very high.
因為洞頂不是很高，我繼續彎著腰往前走。