| 51. | Eels have been on the feed in the Lower Thames. |
| 鳗鱼在泰晤士河下游觅食。
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| 52. | His funds were sinking lower and lower. |
| 他手头的钱越来越少了。
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| 53. | Lead will fuse at a lower temperature than some other metals. |
| 铅熔化的温度比另一些金属熔化的温度要低。
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| 54. | Lower the flame under the frying pan. |
| 把煎锅下面的火苗调小一点。
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| 55. | We are lucky in that only the lower fields, which make up a very small proportion of our farm, are effected by flooding, but other farms are less favorably sited, and flooding can sometimes spell disaster for their owners. |
| 其他农场地势欠佳，洪水有时会给农场主带来灾难。
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| 56. | One had winter we watched the river creep up the lower meadows. |
| 有一年冬天，天气不好，我们眼看着河水浸没了地势较低的草场。
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| 57. | It has to be tall because it is like a giant block and tackle, and we have to lower into the ground and haul out of the ground great lengths of drill pipe which are rotated by an engine at the top and are fitted with a cutting bit at the bottom. |
| 井架必须很高，因为它像一个巨型滑轮组。我们必须把很长的钻杆一节节地钻入地下，然后再从地下拉出来。钻杆顶部安装的发动机带动钻杆旋转，它的底部装有钻头。
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| 58. | The lower gun-ports were now below water and the inrush sealed the ship's fate. |
| 下层炮眼已淹没在水里，涌进船舱的水给“瓦萨”号带来了难以逃脱的厄运。
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| 59. | An electron can drop from a higher level to a lower one with the emission of packet of electromagnetic radiation. |
| 利用电磁辐射束的辐射，能使电子从高能级落到低能级。
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| 60. | He could not lower himself by asking her pardon. |
| 他不能自贬身份，请求她宽恕。
|