| 1. | My plans are still in the vague .
我的计划还没有确定呢。 |
| 2. | The exact mechanism of dealkylation has not been established .
脱烃作用的确切机制还没有确定。 |
| 3. | It is not actually settled, but there is such a thing in agitation .
还没有确定，不过在酝酿。 |
| 4. | Many nonferrous materials do not have a definite endurance limit .
许多有色金属材料没有确定的持久极限。 |
| 5. | While a play was still seek, other preparations were already in hand .
剧本还没有确定，其它准备工作就已经着手了。 |
| 6. | Whether the myxomycota are closely related to the eumycota is doubtful .
粘菌是否与真菌有密切的亲缘关系还没有确定。 |
| 7. | Under natural conditions, the incubation period in feedlot cattle is uncertain in length .
在自然条件下，肥育舍饲牛的潜伏期，还没有确定。 |
| 8. | The role of photochemical reactions in soil pesticide degradation remains uncertain .
光化学反应在土壤中的农药的降解方面的作用还没有确定。 |
| 9. | The site for the new school has not beed decided yet
新学校的地址还没有确定。 |
| 10. | Tartakovsky : nothing definite , but hopefully , yes
没有确定，但是有希望，是的。 |
