filtrate sth
filtrate 作及物动词，后面直接接被过滤的物质。
The technician filtrated the solution before testing it.
技术员在检测前过滤了溶液。
通过过滤器去除
to filter; to remove by passing through a filter
过滤
To filter.
通过过滤器去除
remove by passing through a filter
一般现在时
The filter filtrates impurities from the water.
过滤器从水中过滤杂质。
一般过去时
Yesterday, the scientist filtrated the solution.
昨天，科学家过滤了溶液。
现在进行时
The lab technician is filtrating the sample now.
实验室技术员正在过滤样品。
规则动词
The chemist filtrates the solution to remove impurities.
化学家过滤溶液以去除杂质。
用法提示：动词原形，用于一般现在时第三人称单数。
After boiling, she filtrated the mixture through a cloth.
煮沸后，她用布过滤了混合物。
用法提示：过去式，描述已完成的过滤动作。
The machine is filtrating the water continuously.
机器正在连续过滤水。
用法提示：现在分词，表示正在进行的过滤。
filtrate 作及物动词，后面直接接被过滤的物质。
The technician filtrated the solution before testing it.
技术员在检测前过滤了溶液。
through 后面接过滤所用的介质或装置。
They filtrated the mixture through a fine mesh.
他们用细网过滤了混合物。
被动结构强调某物质被过滤。
The water was filtrated before it entered the tank.
水在进入水箱前经过了过滤。
grammar · medium
易错句子Drink only filtrate water.
正确表达Drink only filtrated water.
这里需要过去分词作形容词修饰 water，表示“被过滤过的水”；filtrate 是动词原形，不能直接作定语。汉语动词没有形态变化，学习者容易直接借用原形。
grammar · medium
易错句子The water was filtrate by the machine.
正确表达The water was filtrated by the machine.
被动语态由 be + 过去分词构成，was 后必须用过去分词 filtrated，不能用动词原形 filtrate；汉语被动意义不靠动词变形，所以容易漏掉 -d。
grammar · medium
易错句子After filtrate, the liquid is clear.
正确表达After filtrating, the liquid is clear.
介词 after 后接动词时要用 -ing 形式，因此用 filtrating 而不是原形 filtrate；汉语介词后可直接跟动词，学习者常忽略英语的动名词要求。
filter 是日常通用动词，凡是用滤器、滤纸去除杂质的动作都能用，还可作名词“过滤器”；filtrate 是化学、实验室术语，作动词时几乎只出现在专业文献中，日常口语不用。
strain 指用滤网、纱布把液体与固体分开，多见于烹饪场景（如滤面条、滤汤汁），常与 off 连用；filtrate 属科学用语，不用于厨房等生活场景。
percolate 强调液体自身缓慢渗过多孔物质，常作不及物动词（如咖啡渗滤、雨水渗入土壤）；filtrate 强调主动让液体通过滤器以去除杂质，多为及物动词，且带专业色彩。
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