| 1. | She positively assured me that it was true .
她向我明确地保证那是事实。 |
| 2. | We should keep this effect in perspective .
我们应该正确地保持这种效应。 |
| 3. | These cultures can be maintained indefinitely .
这些培养物能无限期地保存。 |
| 4. | She gave a solemn undertaking to respect their decision .
她郑重地保证尊重他们的决定。 |
| 5. | A small residue is retained tenaciously by the surface .
少量的残留物被表面牢固地保留着。 |
| 6. | The ancient farmers guarded their water rights jealously .
古代农民极其小心翼翼地保护他们的用水权。 |
| 7. | Exact perpendicularity between the components must be maintained .
各分量之间必须严格地保持互相垂直。 |
| 8. | If i could do it over, could i protect my family better ?
如果我重新干一遍，我能否较好地保护我的家庭？ |
| 9. | It was apparently more tenaciously held to surface than fraction three .
它比级分三更顽强地保持在表面上。 |
| 10. | This head must have been found in classical times and carefully preserved .
这头颅大概是古罗马时代被发现而且小心地保存了起来。 |
