fattest的音標是["f?ti?st]，基本翻譯是“最胖的；脂肪最多的”，速記技巧是“fat-test”（脂肪-最多）。

fattest這個詞的詞源可以追溯到拉丁語詞根“fatus”，意為“fat”或“肥沃的”。它的變化形式主要有“fat”和“fatter”以及“fattest”。

相關單詞有：

fat：脂肪，肥胖的

fatter：更肥胖的

fattest：最肥胖的

這三個單詞在英語中都與肥胖、脂肪有關，并且可以用來描述人或動物的體重或脂肪含量。fat這個詞可以作為形容詞或名詞使用，表示脂肪的多少或脂肪本身。fatter和fattest則通常用作比較級和最高級形容詞，用來比較不同的人或動物的體重或脂肪含量。

fattest這個詞在句子中通常用作定語來修飾名詞，例如“The fattest pig in the pen is named Pepper.”（圈里最肥的豬被命名為胡椒。）這句話描述了豬的體重和名字，同時也說明了fattest這個詞在句子中的使用方式。

以上是對fattest這個詞的一些基本解釋和相關單詞的應用。希望對你有所幫助。

常用短語：

1. Fattest of all

2. Fattest around

3. Be the fattest

4. Fattest person

5. Fattest people

6. Be fat and happy

7. Be the heaviest

例句：

1. He is the fattest person in the class.

2. She is the fattest around and loves to eat.

3. I am the fattest in my family and I am happy with my body.

4. They are the fattest in their school and they are proud of it.

5. I am not the only one who is fat and happy, there are many like me.

6. He is a happy, fat man who loves to eat.

7. She is the heaviest in her class and she knows it, but she doesn"t care.

英文小作文：

Everyone has their own body type and size, and it"s important to accept ourselves as we are. Some people are tall, some are short, some are thin, and some are fat. But no matter what size we are, we should be proud of ourselves and our bodies. Being fat doesn"t mean we are lazy or unhealthy, it just means we have a different body type that we should be proud of and accept. We should not be ashamed of our bodies or feel inferior because of our size, but instead embrace it and be happy with who we are.