单词学习：percolate 动词
percolate
/ˈpɜːrkəleɪt/
1. (液体、气体等)渗透，过滤，渗漏；2. (思想、信息等)逐渐传播，扩散；3. (咖啡)用渗滤壶煮制
The new teaching method began to percolate through the school after Ms. Gu introduced it in a workshop.
在顾老师在一次研讨会上介绍后，这种新的教学方法开始在学校里逐渐传播开来。
单词卡片
卡片已就绪
