filter /ˈfiltə/ I. vt.& vi. 过滤(掉): filter water 过滤水 The solid particles were filtered from the solution. 把固体微粒从溶液里过滤出来。‖II. n. ［c］过滤器：The lake water passes through a filter before it is piped to our homes. 湖水在用管子送到我们家之前经过一个过滤器滤过。