half back

half back的音标是[hɑːf bæk]，基本翻译是半路退缩的人。速记技巧是将其拆分为单词的各个部分并记住它们。

half back这个词的词源可以追溯到古英语，意为“一半的后卫”。它的变化形式包括复数形式“half backs”，过去式“halved”和过去分词“halved”。

相关单词：

1. back：意为“背部”，源于古英语中的“beac”，意为“背”。

2. double：意为“双倍”，源于古英语中的“dubbel”，意为“两倍”。

3. double back：意为“回头”，源于back，表示向相反的方向返回。

4. half：意为“一半”，源于古英语中的“halfa”，意为“一半”。

5. half way：意为“半途”，源于half和way，表示在某个过程中处于一半的位置。

6. quarter：意为“四分之一”，源于古英语中的“cuerwan”，意为“四分之一”。

7. quarter back：意为“四分之一的后卫”，源于quarter和back，表示在球队中担任四分之一的后卫角色。

8. midway：意为“中途”，源于middle和way，表示在某个过程中处于中间的位置。

9. halfback：意为“半后卫”，源于half和back，表示在足球或篮球比赛中担任半后卫的角色。

10. halfback forward：意为“半后卫前锋”，结合了halfback和forward两个词，表示在足球或篮球比赛中担任半后卫前锋的角色。

常用短语：

1. half back (n.) 半场球员

2. go half (or half) way (v.) 半途而废

3. half-heartedly (ad.) 不全心全意地

4. half-time (n.) 半场休息

5. take half (v.) 接受一半

6. half-empty (half-full) (adj.) 半悲观（半乐观）

7. half-way (ad.) 在一半的地方

双语例句：

1. He is a half back and always ready to help others. （他是一名半场球员，总是乐于助人。）

2. She is always half-heartedly doing her work, which makes her grades poor. （她总是半途而废地做工作，导致成绩不佳。）

3. After a long day"s work, we took a half-time break to relax and recharge our batteries. （经过一整天的工作，我们进行了半场休息来放松和充电。）

4. We need to take half of the responsibility for our failure, but we shouldn"t give up halfway. （我们需要为我们的失败承担一半的责任，但我们不应该半途而废。）

5. Half of the money raised will go to charity, while the other half will be used for research and development. （筹集的资金的一半将用于慈善事业，另一半将用于研发。）

6. The movie was half-way decent, but it lacked the emotional depth that made the first one so great. （这部电影还算不错，但缺乏第一部电影所具有的情感深度。）

7. We are halfway through the project and it looks like we will meet our deadline. （项目进行了一半，看来我们会按时完成。）

英文小作文：

Half Back: The Role of Persistence in Success

Half back, a term often used in sports, represents a crucial aspect of persistence and perseverance. It represents the willingness to keep going, even when faced with challenges and obstacles. In this essay, I will explore the role of persistence in success and how it is reflected in the role of the half back.

Persistence is essential in achieving success because it requires us to overcome obstacles and challenges that come our way. As a half back, we must keep playing even when we are tired or injured, knowing that failure is not an option. This requires a strong willpower and a determination to succeed, which are key qualities that contribute to our overall success.

In addition to persistence, the half back also requires skill and talent to perform well. However, these are not enough on their own. Success requires a combination of talent, hard work, and perseverance, all of which are reflected in the role of the half back. Without these qualities, it would be difficult to maintain our focus and determination when faced with challenges and setbacks.

Finally, the half back teaches us that success is not solely determined by our abilities or circumstances, but rather by our attitude and approach to challenges. By persisting and staying focused, we can achieve our goals and dreams, no matter what obstacles stand in our way. Therefore, the role of persistence in success is an important lesson that we can learn from the half back and apply to our own lives.