Calcareous tuff
[机] 石灰华
🧩 词语组成解析
n. 钙化软骨\\n[化] 石灰质的; 含钙的
n. 凝灰岩\\na. 第一流的
🗣️ 情景例句
What currency do they use in U.S.A.?
在美国人们用什么货币？
It has been a long time since last came here.
自从我上次来这里已经有很长时间了。
A man may acquire great knowledge of topics unconnected with his daily work,
一个人可能会获得与其日常工作无关的某些课题的渊博知识，