| 11. | The cement should stand proud of the surface and then be smoothed down later. |
| 施用水泥时应先高出于表面然后再将其抹平。
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| 12. | Steam condenses/is condensed into water when it touches a cold surface . |
| 蒸气接触冷的表面而凝结成水珠。
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| 13. | His hand came into contact with a hot surface . |
| 他的手触到热物体的表面。
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| 14. | The astronauts piloted their craft down to the lunar surface . |
| 宇航员驾驶宇宙飞船在月球表面降落。
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| 15. | The surface of the liquid gradually crusted over. |
| 液体表面渐渐地结了一层皮。
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| 16. | The surface of the water was dimpled by the breeze. |
| 轻风拂动水面,荡起了涟漪。
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| 17. | The net is weighted to keep it below the surface of the water. |
| 这个网加了坠因而可没入水面以下。
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| 18. | This essay is so short that it can only scratch the surface of the topic. |
| 这篇文章很短,只能对这一问题作肤浅的探讨。
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| 19. | The famine is so bad, aid can only scratch the surface . |
| 饥荒十分严重,援助也只是杯水车薪。
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| 20. | Most of the earth's surface is covered by (the) sea. |
| 地球表面大部分是海洋。
|