单词学习：petrification 名词
petrification
/ˌpetrɪfɪˈkeɪʃn/
石化；石化作用；惊呆
The students watched in petrification as Mr. Gu demonstrated the volcanic process that leads to the petrification of wood.
当顾老师演示导致木材石化的火山作用过程时，学生们都惊呆了。
单词卡片
卡片已就绪
