filter

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【词性】：n．

【释义】：

❶ 过滤器❷ 过滤用多孔物质❸ 滤光器，滤色镜〔A color filter for a camera lens lets only certain light rays through．照像机上的滤色镜只让一定的光线穿过。〕‖ v．❶ 过滤，滤过〔to filter smoke过滤烟water filtering through gravel渗过石砾的水〕
❷ 成为…的过滤物❸ 滤清，滤除❹ 慢慢传开〔The news filtered through town．消息慢慢传遍全城。〕