approximately

approximately的音标是[əˈprɒksɪsməntlɪ]，基本意思是“大约，大概”。在发音时，/ə/是轻微辅音，需要轻微的口劲发出声音，/prɒksɪs/是双音节单词，注意音节的划分。这个单词的构词很有特点，词根approach有“接近”的含义，加上后缀-sily就能表达“大约”的含义。同时，这个单词也可以通过构词法来记忆，即approximate（近似）+ly（副词后缀）= approximately（大约）。

英文单词“approximately”来源于拉丁语“approximare”，意为“接近，近似”。其变化形式包括“approximation”（近似），“approximate”（近似的），“approximately”（大约）等。

相关单词：

approximation：n. 近似，近似的值或结果

approximate：adj. 大约的，近似的；v. 接近，近似

approximately：adv. 大约，大概；几乎，差不多

例如，当我们说“这个数值大约是5”时，就会使用“approximately”。这个词在日常交流中非常常见，而且已经被广泛接受和使用。这个词的使用使得我们的表达更加精确和清晰。此外，“approximately”还可以与一些其他词组成短语，如“approximately equal to”表示大约相等。

希望以上信息对您有所帮助。

常用短语：

1. approximately $100

2. approximately 30 minutes

3. approximately 50%

4. approximately 20 years

5. approximately 70%

6. approximately 15 pounds

7. approximately 10,000 words

双语句子：

1. The price is approximately $100. 价格大约是100美元。

2. We"ll be there approximately 30 minutes later. 我们大约30分钟后到。

3. I"ve been working here approximately 5 years now. 我已经在这里工作大约五年了。

4. They"ve been dating for approximately 2 years now. 他们已经约会大约两年了。

5. The book is approximately 300 pages long. 这本书大约有300页。

6. The weight is approximately 15 pounds. 重量大约是15磅。

7. The movie ran approximately 2 hours and 30 minutes long. 这部电影大约播放了两个小时三十分钟。

英文小作文：

Approximate Numbers

In our daily lives, we use approximate numbers all the time. We use them to describe time, weight, length, and other measurements that are not exact. For example, we might say "it"s about 3 o"clock," "it"s about 5 pounds," or "it"s about 2 hours long." These approximate numbers help us communicate more precisely and easily than using exact numbers would be. They also help us avoid confusion and misunderstandings when dealing with measurements that are not exact. In conclusion, approximate numbers are an essential part of our language and communication, and they help us make sense of the world around us.