percolate
verb uk/ˈpɜː.kəl.eɪt/ us/ˈpɝː.kəl.eɪt/
(LIQUID)
[ I ]渗透，渗漏，渗入
If a liquid percolates, it moves slowly through a substance with very small holes in it.
Sea water percolates down through the rocks. 海水从岩石中间渗流过去。
[ I or T ]（用渗滤式咖啡壶）滤煮（咖啡）
to make coffee using a machine in which hot water passes through crushed coffee beans into a container below
(INFORMATION)
[ I ]扩散;弥漫
to spread slowly
The news has begun to percolate through the staff. 消息开始在员工中传开来。