degradable

degradable的音标为[dɪ"greɪdəb(ə)l]，基本意思是“可降解的”，即通过微生物的作用而自然降解，最终分解为原始形态的物质或能量的材料。

速记技巧：可以记为“de（德）+ grade（等级）+ able（可……的）”，即“德等级可……的”的意思。

degradable的词源：

词根：de-（否定）+ grad(e)（步骤，梯子）+ able（可…的）→ 可分步进行的→ 可降解的

词缀：-able（能够…的）

变化形式：无

相关单词：

1. degradation：退化，恶化

2. degradative：使退化的

3. degradant：使降解的

4. degradometer：降解计，降解分析仪

5. degradable waste：可降解废物

6. biodegradable：生物可降解的

7. photo-degradable：光降解的

8. thermo-degradable：热降解的

9. hydrolytic degradation：水解性降解

10. enzymatic degradation：酶促降解

degradable这个词表示可降解的，与环境友好和可持续性有关。这个词在英语中广泛使用，特别是在讨论塑料废物和其他材料如何最好地被环境吸收或降解。以上内容仅供参考，建议到词源网站查询或请教专业英语人士。

常用短语：

1. degrade rapidly

2. degrade over time

3. environmental degradation

4. biodegradable material

5. biodegrade under natural conditions

6. biodegradable polymers

7. degradation process

例句：

1. The plastic bags we use are easy to degrade rapidly in the environment.

2. The soil is gradually being degraded by human activities.

3. The factory"s waste water is causing environmental degradation.

4. The biodegradable material can be used for packaging and other purposes.

5. Biodegradable polymers are used in various fields such as medicine and agriculture.

6. The degradation process of the material is controlled by various factors such as temperature and humidity.

英文小作文：

Protecting the Environment: Biodegradable Materials

Biodegradable materials are becoming increasingly popular in today"s society because they can help reduce the environmental impact of waste disposal. These materials break down under natural conditions into harmless substances, which means they do not cause long-term pollution or damage to the environment. Instead of using plastic bags or other non-biodegradable materials, we can use biodegradable alternatives that are safe for the environment and our health. These materials can be used for packaging, shopping bags, and other purposes, and they are becoming more and more common in stores and supermarkets. By using biodegradable materials, we can help protect the environment and reduce the negative impact of waste disposal on our planet.