| 51. | His politeness was only on the surface . |
| 他只是表面上客气。
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| 52. | He had to drive slowly over the uneven surface of the road. |
| 在那条崎岖的路面上，人只得慢慢驾驶。
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| 53. | Wickedness is sure to come to the surface in time. |
| 邪恶早晚要暴露。
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| 54. | It has made great progress at least upon the surface . |
| 它至少在表面上取得了很大的进展。
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| 55. | His oar makes an agitation on the surface of water. |
| 他的桨激荡着水面。
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| 56. | This paint will adhere to my surface , whether rough or smooth. |
| 这种油漆能黏附于任何表面,不论它是粗糙的还是光滑的.
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| 57. | All this is fair enough, but it touches only the surface of the problem. |
| 这都说得有道理，但仅触及了问题的表面．
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| 58. | A highly polished metal surface flashes back light like a mirror. |
| 高度磨光的金属面像镜子一样反光。
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| 59. | But as the paper moved from side to side under the pen point, its movement would be recorded in ink upon its surface . |
| 根据这一原理，制造出了最初的地震仪器，但是纸是卷在慢慢放置的圆筒上的。
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| 60. | Apparently what happened was that water collected on these tar pits, and the bigger animals like the elephants ventured out on to the apparently firm surface to drink, and were promptly bogged in the tar. |
| 显然，事情的经过是这样：沥青坑里积存了水，大象那样的大动物冒险到似乎坚固的水面上去饮水，立即掉进了沥青坑。
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