| oxygen | |
| 级别 | 第3级 |
| 音标 | [ ˈɒksɪdʒən ] |
| 解释 | n.氧；氧气 |
| 英英释义 | a colourless gas that forms a large part of the air on Earth and which is needed by people , animals and plants to live |
| 发音 |  |
| 例句 |
1. Oxygen is present in the air. 氧存在于空气中。 2. We need oxygen to support life. 我们需要氧气维持生命。 |
