Nondegradable
不可降解的
🗣️ 情景例句
We have 5 international patents which we are ready to sell.
我们有五项国际专利可以出售。
Marriage is a lottery with more blanks than prizes.
结婚如同摸彩票，空票多而中票少。
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）