Level 4 · word 4,534 of 20,000
ozone
/ˈoʊˌzoʊn/
American

- n. 臭氧
- n. 新鲜空气
- Definition
- n. a gas found high in the atmosphere
- n. fresh invigorating air
- Example
- Scientists study how ozone protects the earth from radiation.
- 科学家研究臭氧如何保护地球免受辐射伤害。
Word mapGases