efficiency

efficiency的音标是[ɪˈfɪʃənsɪs]，基本翻译是效率、效能。记忆技巧可以是：易发神（effi）仙（ci）的仙女姐姐，总是很有效率。

Efficiency这个词的词源可以追溯到拉丁语词“efficientis”，意为“能产生效果的”。这个词在英语中演变成为“efficient”，表示“有效率的”或“能产生预期效果的”。

变化形式：

1. Efficient - 名词和形容词形式，表示效率高的人或物。

2. Efficacy - 名词形式，表示效果或效能。

相关单词：

1. Economy - 词源和 efficiency 相近，表示节约、经济。

2. Effective - 形容词形式，表示有效的、产生预期效果的。

3. Productive - 形容词形式，表示生产效率高的。

4. Rational - 形容词形式，表示理性的、合理的，有时也用来形容效率高的。

5. Speed - 名词和形容词形式，表示速度、效率。

6. Convenience - 名词形式，表示便利、效率。

7. Efficiency Room - 名词形式，表示效率室，常用于讨论提高工作效率的地方或设施。

8. Resourceful - 形容词形式，表示机智的、善于利用资源的。

9. Efficiently - 副词形式，表示有效地、高效地。

10. Efficacious - 形容词形式，表示有功效的、有效的，有时也用来形容效率高的。

常用短语：

1. efficiency in production

2. efficiency in operation

3. high efficiency

4. low-efficiency equipment

5. energy efficiency

6. resource utilization efficiency

7. efficiency improvement

例句：

1. The factory has achieved high efficiency in production thanks to the new production line.

2. The efficient operation of the new machine has greatly improved our work efficiency.

3. The old equipment is inefficient and needs to be replaced with new ones.

4. We need to improve our resource utilization efficiency to reduce waste and increase profits.

5. Energy efficiency is becoming increasingly important as we try to reduce our carbon footprint.

6. Efficiency improvement is a continuous process that requires continuous effort and innovation.

英文小作文：

Efficiency is a crucial factor in any business or industry, whether it"s manufacturing, operations, or resource management. By increasing efficiency, we can reduce costs, increase productivity, and improve the overall performance of our organization.

In the manufacturing industry, for example, high efficiency in production can result in faster turnaround times, fewer defects, and increased profitability. Similarly, efficient operation of equipment can result in less downtime and increased output, leading to better overall performance of the organization.

However, achieving efficiency is not always easy, as it requires continuous effort and innovation. We need to identify bottlenecks and inefficiencies in our processes and work systems, and implement strategies and tools that can help us improve our efficiency levels.

In conclusion, efficiency is key to success in any industry or business, and it requires continuous effort and innovation to achieve it. By focusing on efficiency, we can improve our overall performance and achieve greater success in our organization.