expectoration

expectoration的音标为[ɪkˈspekˈreɪʃn]，基本翻译为“吐出；咳出；发出”，速记技巧为“ex-spect-or-a-tion，预期的咳出”。

expectoration这个词源自拉丁语，意为“吐痰”。它的词源可以追溯到古罗马时期，当时人们用吐痰来表达愤怒、厌恶或痛苦。

expectoration的变化形式主要有复数形式：expectorations，过去式：expectorated，现在分词：expectorating。

相关单词：

1. expectorant - 意为“祛痰药”，指能够使痰液容易咳出的药物或物质。

2. expectorate - 意为“吐痰”，是expectoration的常用形式。

3. expectoratory - 意为“吐痰室”，通常指医院或诊所为患者提供吐痰的专门场所。

4. phlegm - 意为“黏液”，与expectoration相对，是肺部和呼吸道中的一种液体物质。

5. spit - 意为“吐口水”，通常指无意识地吐出唾液，有时带有侮辱或贬低的含义。

6. sputum - 意为“痰液”，是expectoration的正式术语，通常用于医学和科学文献中。

7. cough - 意为“咳嗽”，是expectoration的一种常见方式，通过咳嗽将痰液排出。

8. expectorate regularly - 意为“定期吐痰”，通常指健康成年人定期通过咳嗽将痰液排出。

9. expectorate effectively - 意为“有效地吐痰”，指通过咳嗽或其他方式有效地排出痰液。

10. expectoration reflex - 意为“反射性吐痰”，指人体通过咳嗽或其他反射机制将痰液排出的一种生理反应。

expectoration 的常用短语：

1. expectoration of sputum 痰液咳出

2. expectoration rate 咯痰率

3. expectoration process 咯痰过程

4. expectorant 祛痰药

5. expectorant therapy 祛痰疗法

6. expectorate 咯痰

7. expectorate effectively 有效地咯痰

双语例句：

1. He coughed and then expectorated a piece of phlegm. 他咳嗽后吐出了一块痰。

2. She found it difficult to expectorate completely after taking medicine. 吃了药后，她发现很难完全把痰咳出来。

3. The patient"s condition improved after receiving expectoration therapy. 经过祛痰疗法，病人的病情有所好转。

4. The expectoration rate of the patient has increased significantly. 病人的咯痰率明显增加。

5. The expectoration process is a crucial part of the respiratory system. 咯痰过程是呼吸系统的重要组成部分。

6. I hope to improve my ability to expectorate effectively with the help of medication. 我希望在药物的帮助下，能够有效地咳出痰。

7. I have to take medicine to help me expectorate better. 我必须吃药才能更好地咳出痰。

英文小作文：

Title: The Importance of Coughing and Expectoration

Coughing and expectoration are essential parts of our respiratory system, helping us to clear out irritants and waste materials from our lungs. When we cough, we force air into our lungs, stimulating the cough receptors in the throat and trachea to send signals to the brain, which in turn initiates the coughing process. This process helps us to clear out mucus, bacteria, and other irritants from our lungs, preventing them from causing further harm or infection.

However, not all coughs and expectorations are created equal. Some coughs produce large amounts of mucus, while others produce very little or none at all. This can be due to various factors, such as illness, allergies, smoking, and other environmental factors. If you find that your cough and expectoration are not working effectively, it may be worth consulting your doctor for advice and treatment options.

In conclusion, coughing and expectoration are crucial parts of maintaining good respiratory health, and it is essential to maintain good hygiene practices and seek medical attention if necessary.