Ignimbrite
n. [地]熔結凝灰巖,熔灰巖
??? 情景例句
Miss Chen is not in right now. She went shopping.
陳小姐現在不在，她去買東西了。
I'm the luckiest person in my class.
我是我的班級中最幸運的人。
Many firms, for instance, have great difficulty in obtaining technical or scientific books from libraries
比如，很多公司向圖書館借閱科技書籍時感到很困難，