vt.

1. 过滤；使渗出；使浸透

vi.

1. 过滤；渗出；浸透

v.

1. filter through a porous surface or substance.
2. (of information etc.) spread gradually through a group of people.
3. (with reference to coffee) prepare or be prepared in a percolator.
4. US be or become full of lively activity or excitement.