| 41. | The ship struck on a sunken rock and sank. |
| 那艘船触上暗礁沉没了。
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| 42. | The steamer was dashed against a rock . |
| 轮船触礁了。
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| 43. | The ship wrecked on a sunken rock . |
| 那艘船触礁遇难。
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| 44. | Even if you don 't agree with me, you mustn't rock the boat ant this difficult time. |
| 即使你不同意我的意见，也不该在这困难的时刻进行捣乱。
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| 45. | A big rock rolled down and we only just escaped being hit. |
| 一块大石头滚了下来，差点儿砸着我们。
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| 46. | As the rock rolled down the mountainside, it gathered momentum. |
| 石头滚下山坡时，它的冲量不断增大。
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| 47. | He saw a large rock lying across the rails. |
| 他看到铁轨上横着一块大石头。
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| 48. | The worker is levering at the rock . |
| 那工人正在用杠杆撬石头。
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| 49. | With one great lift, the men moved the rock . |
| 那些人猛一抬，把那块石头搬动了。
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| 50. | They discovered fossils in the lowest level of rock . |
| 他们在岩石的最底层发现了化石。
|