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一天,我们用塑料篮洗生菜,洗好后,发现原来粘在篮子上的油污不见了。后来,我们又尝试过多次,都得出同样的结果。
One day, we washed the lettuce in a plastic basket, and after washing it, we found that the oil that stuck to the basket was gone. Later, we tried again and again many times and all reached the same result.