Level 4 · word 3,465 of 20,000
oxygen
/ˈɑːksədʒən/
American
- n. 氧气
- Definition
- n. a colorless gas in the air that people and animals need to breathe
- Example
- Plants release oxygen into the air during the day.
- 植物在白天会向空气中释放氧气。
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