colorfast

colorfast的音标为：[ˈkʌləˌfɑːst] ，基本翻译为“不易褪色的”，速记技巧为：color（颜色）+ fast（快）→颜色不易褪色。

Colorfast这个词的词源可以追溯到拉丁语词根“color”和“fastus”，意为“快速的”、“不易坏的”。这个词在英语中的变化形式主要是词形的变化，如过去式、过去分词和现在分词等。

相关单词：

1. Colour - 颜色，词源同color，表示颜色的意思。

2. Fast - 快速的，词源同fast，表示快速的意思。

3. Fastness - 坚固的，词源同fast，表示坚固的意思。

4. Resolute - 坚决的，词源同fast，表示坚定不移的意思。

5. Efficiency - 效率，词源同fast，表示快速有效。

6. Flux - 流动，词源同flow，表示流动的意思。

7. Stability - 稳定性，词源同fast，表示稳定的意思。

8. Consistent - 一致的，词源同color，表示颜色一致的意思。

9. Perpetual - 永久的，词源同perpetual，表示永久的意思。

10. Immovable - 不可移动的，词源同immoveable，表示不可移动的意思。

以上这些单词都与colorfast这个词有密切的联系，因为它们都涉及到速度、稳定性、一致性、持久性等方面的含义。这些单词在英语中广泛使用，并且具有丰富的含义和用法。

常用短语：

1. colorfastness 耐色牢度

2. fast color 耐久色

3. fast-drying 快干色

4. fade-resistant 不褪色

5. colorfastness indicator 耐色牢度指示剂

6. colorfastness test 耐色牢度测试

7. colorfastness rating 耐色牢度等级

例句：

1. The fabric is highly colorfast and will not fade easily.

这件衣服的色牢度高，不易褪色。

2. The paint is fast-drying and will not peel or crack easily.

这种油漆干燥速度快，不易剥落或开裂。

3. The dye fastness of this fabric is excellent and it will not rub off onto other clothes.

这种织物的染料耐久性非常好，不会把颜色蹭到其他衣物上。

4. The colorfastness indicator indicates that the fabric is highly resistant to fading.

耐色牢度指示剂表明这种织物具有很高的抗褪色性能。

5. The colorfastness rating of this shirt is excellent, making it suitable for daily wear.

这件衬衫的耐色牢度等级很高，适合日常穿着。

6. The colorfastness of the carpet is excellent and it will not fade or wear easily.

地毯的耐色牢度非常好，不易褪色或磨损。

7. The new paint formula is fast-drying and will save us time and money in painting repairs.

新涂料配方干燥速度快，将节省我们在涂料维修上的时间和金钱。

英文小作文：

My favorite colorfast fabric is a cotton blend that I find very comfortable to wear and very durable in terms of its color retention. I often find myself wearing this fabric because it stays bright and colorful for a long time without fading or wearing out easily. I also appreciate the fact that it is easy to maintain and requires less ironing or washing, which makes it a perfect choice for daily wear. Additionally, I am always impressed by the fact that colorfast fabrics are environmentally friendly because they do not require as much dyeing and washing, which saves water and energy resources. In conclusion, colorfast fabrics are a must-have for anyone who loves fashion and style, as they provide a sense of confidence and durability that cannot be matched by other fabrics.