(每日一词) sustainable

Sustainable /səˈsteɪnəb(ə)l/ adj. 可持续的

meaning: You use sustainable to describe the use of natural resources when this use is kept at a steady level that is not likely to damage the environment. 

前缀: sus- 向下

词根: tain- 拿, 持有

后缀: -able 形容词后缀

变形: sustainability n. 可持续性

e.g. We need to find sustainable solutions to climate change. 我们需要找到可持续的解决方案来应对气候变化。