| lifetime | |
| 级别 | 第4级 |
| 音标 | [ ˈlaɪftaɪm ] |
| 解释 | n.一生，终身，寿命，使用期限 |
| 英英释义 | the period of time during which someone lives or something exists |
| 发音 |  |
| 例句 |
1. He wrote many books during his lifetime. 他一生著作甚多。 2. During his lifetime his work was never published. 他的作品在他的有生之年从未出版过。 |
