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妈，您看我刚买的裤子，洗完以后颜色怎么变得这么难看呢？ 看来是掉颜色了，你洗的时候在水里加点儿盐就不会这样了。 放盐？！盐不是用来做饭的吗？难道它还能让衣服不掉颜色？ 当然。有些衣服第一次洗的时候会掉颜色，其实，有很多方法可以解决这个问题。在水里加勺盐再洗是最简单的方法。用盐水来洗新衣服，这样穿得再久、洗的次数再多，衣服也不容易掉颜色。 我第一次听说盐有保护衣服颜色的作用，生活中还真有不少课本上无法学到的知识。 实际上，很多问题的答案都可以从生活中找到。但这需要你用眼睛去发现，用心去总结。

Mā, nín kàn wǒ gāng mǎi de kùzi, xǐ wán yǐhòu yánsè zěnme biàn de zhème nánkàn ne? Kànlái shì diào yánsè le, nǐ xǐ de shíhou zài shuǐlǐ jiā diǎnr yán jiù bùhuì zhèyàng le. Fàng yán?! Yán bú shì yònglái zuòfàn de ma? Nándào tā háinéng ràng yīfu bú diào yánsè? Dāngrán. Yǒuxiē yīfú dìyīcì xǐ de shíhòu huì diào yánsè, qíshí, yǒu hěnduō fāngfǎ kěyǐ jiějué zhègè wèntí. Zài shuǐ lǐ jiā sháo yán zài xǐ shì zuì jiǎndān de fāngfǎ. Yòng yánshuǐ lái xǐ xīn yīfú, zhèyàng chuān de zài jiǔ, xǐ de cìshù zài duō, yīfú yě bù róngyì diào yánsè. Wǒ dì yī cì tīngshuō yán yǒu bǎohù yīfu yánsè de zuòyòng, shēnghuó zhōng hái zhēn yǒu bùshǎo kèběn shàng wúfǎ xuédào de zhīshi. Shíjì shàng, hěn duō wèntí de dá'àn dōu kěyǐ cóng shēnghuó zhōng zhǎodào. Dàn zhè xūyào nǐ yòng yǎnjīng qù fāxiàn, yòngxīn qù zǒngjié.

Mom, look at the pants I just bought; why did the color become so ugly after washing? Looks like the color has run; if you add a little salt to the water when you wash it, it won't be like this. Add salt?! Isn't salt used for cooking? Could it also keep clothes from fading? Of course. Some clothes lose color the first time you wash them; in fact, there are many ways to solve this problem. The simplest method is to add a spoon of salt to the water and wash again. Wash new clothes with salt water; this way, no matter how long you wear them or how many times you wash them, the clothes won't fade easily. This is the first time I've heard that salt can protect the color of clothes, and there really is a lot of knowledge in everyday life that you can't learn from textbooks. In fact, the answers to many questions can be found in life. But this requires you to use your eyes to discover and your mind to summarize.