feed back的音標為[fi?d b?k]，基本翻譯為“反饋；回報；反響”，速記技巧為“feed”+“back”表示“返回”的意思。

Feed back的英文詞源是拉丁語，意思是“喂養回流”。它的變化形式主要有復數形式“feed backs”和過去式“fed back”。相關單詞有：feedback（反饋）、refeed（回流）、reflux（反流）、reflow（回流）、reflowering（再開花）、refuel（加油）、refueling（加油站）、refurbish（修復）、refurbishments（修復工作）和refuseback（退回）。

Feedback作為名詞，意為“反饋”，它是一種重要的信息交流方式，指將個人或組織的意見、建議、評價等信息反饋給相關人員，以幫助其改進工作或提高效率。在英語中，feedback一詞的使用頻率越來越高，它不僅用于技術領域，也廣泛應用于商業、教育、醫療等各個領域。

此外，refeed、reflux、reflow等詞也與“回流”有關，它們在英語中常用于描述物理、化學、生物等領域的現象或過程。這些詞的變化形式和相關單詞體現了英語詞匯的多樣性和靈活性，也反映了英語語言和文化的發展和演變。

常用短語：

1. feed back 反饋

2. give feedback 給出反饋

3. get feedback 收到反饋

4. provide feedback 提供反饋

5. feedback loop 反饋回路

6. receive feedback 收到反饋

7. send feedback 發送反饋

例句：

1. Please provide us with your feedback on our new product.

2. I received a lot of positive feedback on my presentation at the meeting.

3. The sales team has been busy collecting feedback and making improvements to the product.

4. Feedback from customers is essential for improving our services.

5. The system has a feedback loop that allows us to monitor and adjust our operations.

6. Please send me your feedback on the new website design.

7. We need to send out a survey to collect feedback on the new product launch.

英文小作文：

Feedback is an essential part of any process, whether it"s a project at work, a class at school, or even a conversation with friends. Feedback helps us identify areas that need improvement and provides a way to improve our performance or communication skills.

When receiving feedback, it"s important to take it in with an open mind and use it as a way to grow. It"s also important to give feedback to others when they"ve done something well, as this can help build trust and encourage better performance in the future.

Finally, it"s essential to remember that feedback is a two-way street. It"s not always easy to give or receive criticism, but with practice and patience, we can all improve in this area.