adj.过滤过的
动词filter的过去式和过去分词形式.
The sunlight filtered through the curtains. 阳光透过窗帘映了进来。
Filtered water is piped into the buildings. 过滤后的水通过管道输入大楼。
The solids were filtered out and only the liquid passed into the glass. 固态物质被过滤出来，只有液体流进了杯里。
adj.未滤过的
