| 1. | In his eye there was a doubtful light . 他的眼睛闪烁着一种怀疑的光芒。 |
| 2. | He had a spasm of doubtful pride . 他体验了一阵不塌实的自豪感。 |
| 3. | But at best it was a doubtful business . 可事情总不免有点儿玄。 |
| 4. | I 'm doubtful as to what i ought to say . 我拿不准该说些什么。 |
| 5. | The propriety of her deeds was doubtful . 她的行为是否得体却是很可怀疑的。 |
| 6. | His father, too, seemed doubtful in his view . 他父亲的看法好象也模棱两可。 |
| 7. | It is doubtful whether there will be any seats left . 说不上还有没有空座位了。 |
| 8. | I 'm doubtful what i ought to say . 我拿不准该说些什么。 |
| 9. | He is doubtful about the news . 他怀疑那个消息不尽可靠。 |
| 10. | The insecticidal action must be considered doubtful . 这个杀虫作用是值得怀疑的。 |