| 1. | I have made some clear observations .
我已经进行了一些仔细的观察。 |
| 2. | A great deal of research has been conducted to establish these limits .
为了确定这些限度，已经进行了大量研究。 |
| 3. | One advanced version is the excalibur, already being tested, which boosts the x ray produced by a nuclear explosion .
“魔剑”是一种已经进行了试验的先进武器，它增强由核爆炸产生的X射线。 |
| 4. | Fortunately , some work has gone before you
幸运的是，在您之前已经进行了一些工作。 |
| 5. | 4the skating marathon has been going for five hous
马拉松滑冰赛已经进行了五个小时了。 |
| 6. | I have been testing different combination of settings
我已经进行了不同的联合设置测试。 |
| 7. | We already compiled in support for the sysrq key
为了支持sysrq键，我们已经进行了编译。 |
| 8. | He has done a great deal of research on that subject
他对那个专题已经进行了大量的研究。 |
| 9. | We have already had two english tests
我们已经进行过两次英语测验了 |
| 10. | I ' ve been working a year on that project
那个计划我已经进行了一年 |
