concertina walls的音標為：[?k?ns??te?n?] ，翻譯為“伸縮墻”或“鐵絲網墻”。

速記技巧：該詞中的“concertina”可以縮寫為“con”或“伸縮”的意思，而“walls”表示“墻”的意思。因此，可以將該詞快速記憶為“伸縮墻”或“鐵絲網墻”。

Concertina walls這個詞源于英語，其詞源可以追溯到法語詞匯“concertina”，意為“拉鏈”。在軍事領域，concertina walls通常指的是一種折疊或伸縮的防御墻。這種墻在展開時可以形成一個連續的屏障，具有很強的防御效果。

變化形式：在英語中，concertina walls的形式沒有發生改變。

相關單詞：

1. Barrier（屏障）：這個詞可以用來描述concertina walls這樣的防御設施，意為阻擋或阻止入侵者的屏障。

2. Defensive（防御的）：concertina walls是一種防御性的設施，因此可以用defensive來表示。

3. Expansion（擴展）：當concertina walls展開時，可以用來描述這種擴展的過程或行為。

4. Contraction（收縮）：與expansion相反，當concertina walls折疊或收縮時，可以用來描述這種過程。

5. Stretch（伸展）：這個詞可以直接用來描述concertina walls展開的過程。

6. Fold（折疊）：折疊是concertina walls的主要特征之一，因此可以用這個詞來描述它。

7. Retract（收回）：當concertina walls不再需要用作防御時，可以用來描述其收回的過程。

8. Defensive line（防御線）：這個詞也可以用來描述由concertina walls構成的防御線。

9. Tension（張力）：在描述concertina walls的展開過程中，可以使用這個詞來描述其張力的狀態。

10. Release（釋放）：當concertina walls被拉開時，可以用來描述其釋放的過程。

常用短語：

1. concertina like a pinata

2. concertina up

3. concertina effect

4. concertina arms

5. concertina defense

6. concertina way

7. concertina up walls

例句：

1. The concertinaed like a pinata in the crowd.

2. The enemy concertinaed up their defenses and dug in for the night.

3. The concertina effect of the storm caused widespread damage.

4. They concertinaed their arms in preparation for the attack.

5. The concertinaed way of the crowd made it difficult to move quickly.

6. The wall was concertinaed up to prevent unauthorized access.

7. The wall is a symbol of our defense, but it cannot be concertinaed up indefinitely.

英文小作文：

The Concertina Walls - Symbol of Security and Limitations

The concertina walls stand as a symbol of our defense, protecting us from the outside world, but they also represent limitations and constraints. They are a constant reminder of our efforts to safeguard our country, but they also indicate the limits of our resources and capabilities.

The walls are a testament to our determination and resilience, but they also highlight our vulnerabilities and weaknesses. They are a constant reminder of the challenges we face, but they also provide us with a sense of security and stability.

The concertina walls are not just a physical structure, but also a symbol of our collective spirit and resilience. They are a testament to our ability to adapt and overcome, even in the face of adversity and challenges. They are a reminder that we are not alone in this journey, but that we stand together, shoulder to shoulder, in defense of our country and our people.