| 1. | He proved the existence of parallel lines . 他证明了平行线的存在性。 |
| 2. | Make it the one monument of your existence . 让它为你的一生树碑立传。 |
| 3. | I was unaware of his existence until now . 现在我才知道有他这么个人。 |
| 4. | Do you really believe in the existence of god ? 你真地相信上帝存在吗? |
| 5. | When did the world come into existence ? 世界是什么时候产生的? |
| 6. | Do you believe in the existence of ghosts ? 你相信有鬼存在吗? |
| 7. | We led a happy enough existence as children . 我们小时候的生活过得很愉快。 |
| 8. | She suffered from the nameless pain of existence . 她遭受着生存的无名痛苦。 |
| 9. | She hoped to convey the "immediacy" of existence . 她想表现人生的“亲切感”。 |
| 10. | The law has no separate existence . 法律并不是孤立存在的。 |