recycling

n. /ˌriːˈsaɪklɪŋ/ B1

回收利用；循环利用

The process of collecting and changing used items into reusable materials.

仙境例句

The King loved recycling; his old crowns were melted down to make new ones.

国王很喜欢回收利用，他的旧王冠都被熔掉，做成了新王冠。