可降解的英文：
degradable pollutant

Throwaway Bio-degradable plastic bags.
可降解一次性塑料袋。

These are especially important for environmental applications where biodegradability is a major requirement.
生物可降解性是环境保护的重要要求。

Bottles, yogut tubs o candy wrappers made of LeanMaterial would all be degradable
用它制造的瓶子、酸奶杯和糖果包装都是可降解的。

The captain is degraded for disobey order.
这个上尉因不服从命令而被降级。

He was degraded from the class.
他被降级了。

Ecological degradation mainly includes degradation of terrestrial and aquatic ecosystems.
生态退化主要包括陆地生态系统和水域生态系统的退化。

Engage in degradation and arbitrage of foreign exchange
骗汇套汇

A dishonest action like that will degrade you.
像这样不诚实的行为会使你降低身份。

release (of a pollutant)
排出污染物; 放出污染物

This material is recyclable and will not pollute the environment.
这种材料是可循环利用的，因而不会污染环境。

Is the water polluted at source?
河水是在源头受到污染的吗？

Our tests are not polluting the atmosphere.
我们的试验并不沾污大气层。

long term effect of pollutant
污染物质远期效应