| 1. | The crisis warrants special measures . 大难当头有必要采取特别措施。 |
| 2. | I can shut myself off if necessary . 如果有必要的话,我会甩开你的。 |
| 3. | He found it necessary to shoot a sheriff . 他认为有必要开枪结果执法长官。 |
| 4. | You need a perspective on yourself . 你有必要回顾一下你的一生。 |
| 5. | Is it necessary for me to buy a pair of water-skis ? 我有必要买双滑水屐吗? |
| 6. | Did you need to spoil it by making me nauseous ? 难道你真有必要倒我的胃口吗? |
| 7. | It is appropriate to emphasize its major disadvantage . 有必要指出它的主要缺点。 |
| 8. | We badly need some notation . 我们很有必要规定一些记号。 |
| 9. | We deem it necessavy to make this clear to you . 这件事我们认为有必要跟你们说清楚。 |
| 10. | The most northerly races have to be transferred southwards . 最北的种族有必要南移。 |