动词
中文翻译：过滤
同义词：
['filter', 'sieve', 'permeate']
例句：
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1.The water was so dirty that it had to be filtered before drinking.
这水太脏了，必须过滤后才能喝。
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2.The scientist used a sieve to filter out the impurities in the sample.
科学家用筛子过滤掉样本中的杂质。
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3.The rainwater permeated through the porous soil, nourishing the plants.
雨水渗透进多孔的土壤，滋养着植物。