fail-safe的音標是[fe?l ?se?f]，中文翻譯為"安全失效"。"fail-safe"通常用于描述一種系統設計，在這種設計中，如果發生特定情況（如故障），系統會自動進入安全模式，以防止損害。速記技巧可以是將其分解為單詞"fail"和"safe"，分別代表"失敗"和"安全"，以幫助記憶。

fail-safe這個詞來源于英語，意思是“安全失效的”，也就是在系統出現故障時能夠自動恢復的機制。它的詞源可以追溯到機械工程和自動控制領域。

fail-safe的變化形式主要有復數和過去式、過去分詞，分別為failsafes和fail-safed。

相關單詞有：safeguard，這個詞的意思是“安全防護”，它和fail-safe相反，表示在風險出現時采取的預防措施。此外，fail-safe還可以和其它詞組成短語，比如“fail-safe system”，指的是故障安全系統。另一個相關單詞是backup，意思是“備份”，在系統出現故障時，備份數據可以用來恢復系統。

fail-safe這個詞在英語中經常被使用，特別是在計算機和自動化領域，因為它描述了一種在系統出現故障時能夠自動恢復的機制，這對于許多現代設備來說非常重要。

常用短語：

1. fail-safe operation 安全失效操作

2. fail-safe equipment 安全失效設備

3. fail-safe system 安全失效系統

4. fail-safe backup 安全備份

5. fail-safe backup system 安全備份系統

6. fail-safe procedure 安全失效程序

7. fail-safe mechanism 安全失效機制

雙語例句：

1. The fail-safe equipment ensures that the system will not fail in an accident.

安全失效設備確保系統在意外情況下不會失效。

2. The fail-safe backup system is designed to protect against any potential failures.

安全備份系統旨在保護免受任何潛在故障的影響。

3. The fail-safe procedure is a critical part of any system that must be followed to ensure safety.

安全失效程序是任何系統中必須遵循以確保安全的關鍵部分。

4. The fail-safe mechanism ensures that the system will continue to operate even in the event of a failure.

安全失效機制確保系統即使在發生故障的情況下也能繼續運行。

5. The fail-safe equipment is designed to prevent accidents from occurring in the first place.

安全失效設備旨在防止事故發生。

6. The fail-safe backup system ensures that critical data is always available in case of a disaster.

安全備份系統確保關鍵數據在發生災難時始終可用。

7. The fail-safe procedure is a must for any system that involves human interaction.

對于任何涉及人機交互的系統，安全失效程序是必不可少的。

英文小作文：

Fail-Safe Equipment in Modern Life

Modern technology has made it possible for us to rely on a wide range of equipment and systems in our daily lives. Among these, fail-safe equipment plays a crucial role in ensuring the safety and reliability of these systems.

Fail-safe equipment is designed to prevent accidents and failures by providing backup systems and procedures that can take over in case of a malfunction or error. From power grids to transportation systems, from medical devices to communication networks, fail-safe equipment is everywhere, ensuring that our critical systems continue to operate safely and reliably.

However, despite the widespread use of fail-safe equipment, we must always remain vigilant and attentive to ensure that these systems are maintained and updated to keep up with technological advancements and changing environments. Only through continuous vigilance and maintenance can we ensure the safety and reliability of our modern lives.