approximations

approximations的音标是[əˈprɒksɪmɪeɪʃnz]，基本翻译是“近似，近似值”。速记技巧可以是将其中的字母进行缩写或替换，例如将“approx”简化为“aprx”等。

Approximations的英文词源可以追溯到拉丁语approximate，意为“接近，近似”。其变化形式包括approach（接近，着手）、approximation（近似）、approximate（近似的）等。

相关单词：

1. Approach：这个词可以指接近的方式，也可以指解决问题的途径。例如，在科学研究中，我们可以通过不同的方法来解决问题，这些方法就是不同的“approaches”。

2. Accuracy：与approximation相对，accuracy表示精确度，即完全符合真实情况的程度。

3. Difference：这个词表示差异，与approximation的近义词similarity相反。

4. Fuzzy：这个词用来形容模糊不清的状态，与精确的approximation相反。

5. Precision：这个词表示精确度，与模糊的fuzzy相反。

6. Proximity：这个词表示接近的程度，与approximation有相似的含义。

7. Similarity：这个词表示相似性，与difference相对。

8. Quasi-approximation：这个词用来形容某种近似但并不完全精确的情况。

9. Substantial approximation：这个词用来形容一种非常接近真实情况的近似值。

10. Tolerant approximation：这个词用来形容对精确度的容忍度较高的近似方法。

常用短语：

1. approximate estimate

2. round estimate

3. ballpark figure

4. best guess

5. rough calculation

6. near-accurate approximation

7. near-exact estimation

例句：

1. We need to come up with an approximate estimate of how much money we"ll need for the project.

2. The round estimate provided by the salesperson seems to be quite accurate.

3. The ballpark figure provided by the company seems to be a good approximation of the actual cost.

4. Our best guess is that we"ll need to hire 20 people to complete the project on time.

5. The rough calculation we made suggests that we"ll need to invest more than we originally planned.

6. The approximation provided by the software was very close to the actual result.

7. We need to come up with a near-accurate approximation of the number of visitors we"ll receive during the event.

英文小作文：

Title: Approximating Numbers in Business

In business, it is often necessary to estimate numbers and make decisions based on these approximations. While exact numbers are always preferred, sometimes it is not possible to get them and we have to rely on approximations. Approximations can be very useful in many situations, but they should always be taken with a grain of salt because they are just that - approximations.

When making approximations, it is important to use reliable sources and methods to ensure accuracy. For example, if we are estimating the number of customers who will attend an event, we can use past attendance data, surveys, and other sources to get a more accurate approximation. Additionally, we should always consider the possible margin of error that comes with any approximation, and take this into account when making decisions.

Approximations can be very helpful in business, but they should always be used with caution and never as a substitute for exact numbers. By using reliable methods and sources, we can get closer to the exact numbers we need, but we should always be aware of the limitations of our approximations and use them accordingly.