| nitrogen | |
| 级别 | 第5级 |
| 音标 | [ ˈnaɪtrədʒən ] |
| 解释 | n.[化]氮 |
| 英英释义 | a gas with no colour or taste which forms about 78% of the Earth's atmosphere and is a part of all things which live |
| 发音 |  |
| 例句 |
1. The atmosphere consist of more than 70% of nitrogen. 大气中含有70%以上的氮气。 2. What is the percentage of nitrogen in air? 空气中所含的氮的比例是多少？ |
