flat-out 的音標是 [?fl?t a?t]，它是一個副詞，意思是“全力地；徹底地”。基本翻譯是“以最快的速度；毫不拖延地”。為了更好地記憶這個單詞，我們可以使用以下速記技巧：flat 意為“平的”，out 意為“出去”，結合起來就是“平坦到不能再出去的地步”，也就是“全力以赴”的意思。

Flat-out這個詞的詞源可以追溯到英語中的“flat”和“out”，其中“flat”意為平坦的，而“out”則表示完全或極端。因此，“flat-out”可以理解為“完全地，極端地”的意思。

變化形式：flat-out是一個形容詞和副詞，作為形容詞時，它可以修飾名詞或動詞，表示程度很高；作為副詞時，它可以修飾動詞，表示以極端的程度做某事。

相關單詞：

1. flat-out honesty（坦率誠實）：表示完全誠實，沒有隱瞞或欺騙。

2. flat-out speed（極速）：表示以極快的速度做某事。

3. flat-out determination（決心）：表示以極端決心做某事。

4. flat-out success（成功）：表示非常成功，達到了預期的目標。

5. flat-out energy（精力）：表示非常充沛的精力，能夠以極高的效率完成工作。

6. flat-out work（努力工作）：表示以極高的努力程度工作。

7. flat-out speedrun（速通）：指在游戲中以極快的速度完成游戲。

8. flat-out success story（成功故事）：表示一個成功的故事，其中包含了極端努力和決心。

9. flat-out competition（激烈競爭）：表示在競爭中以極端的方式進行。

10. flat-out effort（全力以赴）：表示以全部的努力去做某事。

常用短語：

1. flat-out speed

2. flat-out driving

3. flat-out work

4. flat-out effort

5. flat-out success

6. flat-out failure

7. flat-out analysis

例句：

1. He flat-out refused to apologize for his mistake.

2. They worked flat-out to finish the project on time.

3. The company"s flat-out refusal to compromise led to a lawsuit.

4. She flat-out denied the allegations, insisting they were false.

5. His flat-out success in business has inspired many others to follow suit.

6. The flat-out failure of the project left everyone feeling disappointed.

7. We need to conduct a flat-out analysis of the data to identify the root cause of the problem.

英文小作文：

Flat-out effort is essential for success in life. Whether it"s achieving a goal, working hard, or overcoming challenges, we need to put in a full-court press and give it our all.

When we approach life with a flat-out attitude, we can achieve our goals and dreams. We can push ourselves to our limits and exceed our expectations. We can face challenges head on and emerge victorious.

However, it"s not just about achieving success; it"s also about enjoying the journey and learning from our mistakes. By putting in a flat-out effort, we can gain valuable experience and grow as individuals.

In conclusion, a flat-out effort is key to success in life, but it"s also essential for personal growth and happiness. So, let"s embrace this attitude and give it our all every day!