for nothing

for nothing 的音标是[fɔːr nɪθɪz]，基本翻译为“白费了钱或时间”，速记技巧为：for=非，nothing=尼思特休，整体记忆为：非做了尼思特休的事情，没有得到任何东西。

英文单词“for”的词源可以追溯到古英语“forð”，意为“forward”（向前）。它的变化形式包括过去式“ford”, “for”加上词缀“-d”构成，表示“过去”。

相关单词：

1. “fore” - 词根“for”的变体，可以表示“前面”或“预先”。在英语中，有很多单词都含有“fore”，如“forehead”（前额），“foresee”（预见）等。

2. “forward” - 词根“for”和词缀“-ward”的组合，表示“向前”。这个单词在英语中表示“向前的”，“提前的”，“发送到前方”等意思。

3. “regard” - 这个词含有“看作”，“重视”，“尊重”的意思，词源也是“for”，表示向前看，重视。

以上这些单词都与英文词根“for”有着密切的关系，体现了英语词汇的丰富性和多样性。同时，“for”作为英语中一个常用的介词，在句子中起着重要的作用，引导目的、原因、结果等。

至于英文词源、变化形式和相关单词的具体数量，这取决于具体的英文单词和其使用的语境。一般来说，一个单词的词源、变化形式和相关单词的数量会随着时间的推移而变化。以上内容仅供参考。

常用短语：

1. for nothing

2. for the sake of

3. for better or for worse

4. for all that

5. for the time being

6. for the duration of

7. for the duration of one"s life

例句：

1. I worked hard for nothing in return, but I did it for my own satisfaction.

2. I"m willing to travel for the sake of learning new things.

3. They will marry for better or for worse, no matter what happens.

4. For all that, I still believe in love at first sight.

5. For the time being, we"ll have to wait and see what happens next.

6. For the duration of my vacation, I"m going to relax and enjoy myself.

7. For the duration of one"s life, we should try to make the most of every moment.

英文小作文：

标题：Life Is a Journey

Life is a journey filled with many unexpected moments. We encounter joy, sorrow, happiness, and sadness, all of which shape our experiences and make us stronger. We work hard for nothing in return, but we do it because we believe in the value of our efforts. We travel for the sake of learning new things and experiencing new cultures. We marry for better or for worse, no matter what happens. We embrace the challenges of life and try our best to overcome them. Life is a journey that we should cherish and make the most of every moment. As we grow older, we should remember to appreciate every moment of our lives and not take anything for granted. After all, life is a journey worth treasuring and living to the fullest.