| 1. | Farming has been an up-and-down industry .
务农一直是起伏不定的行业。 |
| 2. | The nature of these damping effects is uncertain .
这些阻尼影响的性质是不定的。 |
| 3. | We are watching the fluid situation with concern .
我们密切地注视着动荡不定的局势。 |
| 4. | There was misgiving in his own voice also .
在他自己的口气里，也含有疑虑不定的意思。 |
| 5. | This uncertainty sometimes took a sickening form .
这种悬而不定的感觉有时真叫人难以忍受。 |
| 6. | Their optimism is apt to be decidedly conditional and tremulous .
他们的乐观主义显然是有条件的而且是犹豫不定的。 |
| 7. | Colonel cathcart lived by his wits in an unstable world .
卡思卡特上校凭着自己的聪明才智生活在一个动荡不定的社会里。 |
| 8. | She was chewing her lips; her round, thin face was frozen with uncertainty .
她咬着嘴唇；瘦削的脸上滞留着犹豫不定的神色。 |
| 9. | The veil that had hung uncertainly between them for so long was dissolved .
在他们之间，长期飘忽不定的那层薄纱现在终于消散了。 |
| 10. | Because the whole damned thing is what could properly call transient land .
整个这片该死的岩礁，可以被称为一块飘忽不定的土地。 |
