fall flat 的音標是[f??l ?fl?pt]，基本翻譯是“完全失敗；完全無用”，速記技巧是“發”失敗了。

fall flat的英文詞源可以追溯到古英語中表示“倒下”的詞根。它的變化形式包括過去式fell、現在分詞fallen以及形容詞形式flat。

相關單詞：

fell：這個詞作為動詞時，意為“砍倒，跌倒”，它源于古英語中的fell，表示“砍伐”的動作。

fallen：作為形容詞，fallen表示“倒下的，失敗的”，它源于fall flat的過去分詞形式，表示已經發生過的事件或狀態。

flat：作為名詞，flat可以表示“公寓、平面”，而作為形容詞則表示“平的，單調的”，它源于fall flat中的fell，表示物體或狀態是平坦的或完全失敗的。

在英語中，與fall flat相關的單詞還有fold、flop、collapse、crumble、smash、burst、crush、sink等。這些單詞都與失敗、跌倒、破裂等含義相關，體現了英語詞匯的豐富性和多樣性。

例如，fold意為“折疊”，這個詞源于古英語中的folden，表示將物體折疊或折疊的動作。而smash意為“打碎”，它源于古英語中的smashe或smashan，表示猛烈地打擊或破壞。這些單詞都反映了英語詞匯中豐富的文化內涵和歷史背景。

常用短語：

1. fall flat on one"s face

2. fall flat

3. hit a dead end

4. run into difficulties

5. stumble into trouble

6. hit a brick wall

7. come up against obstacles

例句：

1. He tried to solve the problem, but fell flat on his face and couldn"t find a solution.

2. They were making progress until they hit a dead end and were forced to give up.

3. We were confident about the project, but it turned out that we were running into difficulties that we hadn"t anticipated.

4. He stumbled into trouble by making a careless comment that offended someone.

5. The police are working hard to find out what happened, but they keep hitting a brick wall.

6. The project encountered many obstacles and we had to adjust our strategy accordingly.

7. We fell flat trying to persuade the board to approve our proposal.

英文小作文：

Failure is a part of success. Sometimes, we fall flat on our faces and stumble into trouble, but these experiences can be valuable lessons that help us grow stronger and wiser. When we encounter difficulties, we need to persevere and keep pushing forward, even if it seems like we are hitting a brick wall or falling flat on our face. This is when we learn to adapt and overcome obstacles, which can lead to greater success in the future. Therefore, failure is not something to be afraid of, but rather an opportunity to learn and grow.