efficacity

efficacity的音标是/efɪˈkæsɪtɪ/，基本翻译是效能，效率，速记技巧可以考虑使用发音相似的单词或字母组合来帮助记忆。

Efficacity这个词似乎是不存在的，可能是拼写错误。不过，我可以为你提供与“efficiency”相关的单词、词源和变化形式以及相关的描述。

Efficiency:

词源：该词源自拉丁语“eficacia”，意为“效果、功效”。

变化形式：过去式：effected；过去分词：effected；现在分词：efficient；复数：eficiencies。

相关单词：

1. Productivity：生产效率，指生产过程中产出与投入的比率。

2. Speed：速度，效率的一种表现形式，指完成某项任务或工作时所耗费的时间。

3. Speedup：提速，指通过提高工作效率或改进工作方法来加快工作进度。

4. Effectiveness：效果，指某项活动或措施所产生的实际结果和影响。

5. Efficient：高效的，指在完成任务或达到目标方面表现出的高效率和效益。

6. Economical：节约的，指在资源利用和开支方面表现出的节约和高效。

7. Thorough：彻底的，指在完成任务或工作中表现出的全面、细致和高效的特点。

8. Effectiveness Rate：效率比率，用于衡量某项活动或任务的实际效果与预期效果的对比。

9. Efficiency Gains：效率提升，指通过改进工作流程、技术或方法来提高工作效率和效益。

10. Maximize Efficiency：最大化效率，指通过合理规划、优化资源配置等方式来最大限度地提高工作效率和效益。

以上单词都与“efficiency”相关，并且涵盖了效率的不同方面和表现形式。这些单词在英语中广泛使用，并且在各种语境下都有其特定的含义和应用。

常用短语：

1. effectiveness

例句： The new policy has been effective in improving efficiency in the company.

2. efficient

例句： The efficient way of doing this task is to use a computer program.

3. efficient use

例句： We should make efficient use of our time and resources.

4. efficacy

例句： The drug has been shown to have significant efficacy in the treatment of this condition.

5. effectuate

例句： The goal is to effectuate positive change in society.

6. effectiveness

例句： The organization has achieved high levels of effectiveness in its work.

7. effectivize

例句： It is necessary to effectivize the reform process to ensure its success.

英文小作文：

Title: Effectiveness in Modern Life

In modern society, effectiveness has become a crucial aspect of success and progress. Whether it"s in business, education, or personal life, effectiveness is essential. It helps us achieve our goals faster, improve our productivity, and make the most of our resources.

For instance, using a computer program to efficiently manage our tasks and projects can help us achieve our goals much faster than if we had to do it manually. Similarly, making efficient use of our time and resources in daily life can help us achieve our personal goals and improve our quality of life.

Moreover, effectiveness is also crucial in our professional lives. Being effective in our work helps us achieve our company"s goals, improve our productivity, and earn recognition from our superiors and colleagues. Effectiveness is also essential in maintaining healthy relationships with others, as it helps us communicate effectively and resolve conflicts efficiently.

Therefore, effectiveness is not just a key to success, but also a fundamental aspect of a happy and fulfilling life. By being effective, we can achieve our goals faster, improve our quality of life, and make the most of our resources.