| 41. | I was unable to satisfy them of the truth of my story. |
| 我无法使他们确信我的话是真实的。
|
| 42. | He was unable to control himself. |
| 他控制不住自己。
|
| 43. | He seems unable to give lecture without sheaves of notes. |
| 没有一沓笔记他似乎就不能讲课。
|
| 44. | Men of great learning are frequently unable to state lucidly what they know. |
| 大学问家往往不能清楚地表述他们所掌握的知识。
|
| 45. | He was so fatigued that he was unable to take another step. |
| 他累得（再走）一步也走不动了。
|
| 46. | I was unable to bear the sight of so much suffering. |
| 我不忍看到这么多令人痛苦的事。
|
| 47. | I was unable to prove the truth of what he said. |
| 我不能证实他的话。
|
| 48. | They were unable to attain their objectives. |
| 他们无法达到目的。
|
| 49. | He was unable to escape a whole array of proofs [facts]. |
| 他无法回避这一连串的证据[事实]。
|
| 50. | I am altogether unable to walk. |
| 我完全不能行走。
|