| 1. | I didn't tell him i would come for certain .
我并没对他说我一准来。 |
| 2. | I could n't say for certain when he will arrive .
我说不准他什么时候到。 |
| 3. | She just wanted to know for certain .
她只想把事情弄清楚。 |
| 4. | I do not yet know for certain .
我也知道得不确切。 |
| 5. | The story ranks among classics, and will endure for certain .
此书名列经典著作，历久而不衰。 |
| 6. | We can not say for certain which eigenvalue will be obtained .
我们不能说一定得到哪个本征值。 |
| 7. | For certain detectors, noise is introduced by a readout system .
对于某些探测器，读出系统也会引起噪声。 |
| 8. | It has been shown to be feasible for certain other umbellifers .
已证明这对某些其它伞形科植物是有可能的。 |
| 9. | It would be hazardous, but no more than waiting here for certain detection .
这是冒险的行为，但总比坐以待毙好些。 |
| 10. | He soon developed an affinity for certain stamps from certain countries .
他不久就渐渐地被某些国家的一些邮票所吸引。 |
