| 1. | You need not have hurried .
你实在不必那么匆忙。 |
| 2. | She need not have come in person -- a letter would have been enough .
她本不必亲自来，写封信就足够了。 |
| 3. | In quantum mechanics the particle need not have a definite energy .
在量子力学中，粒子并不需要具有确定的能量。 |
| 4. | Two vector quantities which are equal need not have the same physical effect .
两个相等的矢量并不一定有相同的物理效果。 |
| 5. | " you need not have said that , " my wife answered . " i need not remind you of that terrible tie you bought yesterday . "
“你用不着这样说。”我妻子说。“我用不着提醒你昨天买的那条难看的领带。” |
| 6. | They need not have been punished so severely
他们受到这样严厉的惩罚是不必要的。 |
| 7. | And second , the sell - off need not have been rapid
第二，跌价销售本不应过于仓促。 |
| 8. | And second , the sell - off need not have been rapid
第二，出售证券又不能太快。 |
| 9. | And second , the sell - off need not have been rapid
第二，可以不必急着一下就全部卖出。 |
| 10. | He need not have come . ( but he came . )
当时他不必来。 （但却来了） |
