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| 51. | A rigid framework, as of wooden beams or metal bars, designed to support a structure, such as a roof. |
| 桁架用木棒或金属棒做成的坚硬的构架，用于支撑屋顶等结构 |
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| 52. | A structure, such as an open, roofed gallery or a summerhouse, situated so as to command a view. |
| 观景楼适于俯视风景的一种建筑，如敞开的、有檐的观景台或凉亭 |
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| 53. | "belvedere:a structure, such as an open, roofed gallery or a summerhouse, situated so as to command a |
| 观景楼:适于俯视风景的一种建筑,如敞开的、有檐的观景台或凉亭。 |
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| 54. | One of the hairs along the margin or edge of a structure, such as a leaf, usually forming a fringe. |
| 纤毛一种毛，沿一种结构（如叶子）的边缘生长，通常形成毛边 |
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| 55. | To change the shape of(a structure, such as a wall)by applying lath and plaster or boarding. |
| 改变形状用板条，灰泥或大木板来改变（建筑物，如墙）的形状 |
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| 56. | A low protective wall or railing along the edge of a raised structure such as a roof or balcony. |
| 低矮挡墙一种沿着如屋顶或阳台而建的低矮的护墙或栏杆 |
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| 57. | A structure, such as the breastbone of a bird, that resembles a ship's keel in function or shape. |
| 龙骨脊一种在功能或形状上象船的龙骨的结构，如鸟的胸骨 |
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| 58. | A comblike structure, such as the respiratory apparatus of a mollusk or a row of spines in some insects |
| 栉鳃，栉齿一种梳子状的结构，如软体动物的呼吸器官或者某些昆虫的一排刺 |
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| 59. | A gap or rift, especially in or as if in a solid structure such as a dike or fortification. |
| 突破口豁口或缺口，尤指位于或好象位于壕沟或要塞等坚固结构中的 |
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| 60. | A protective case, covering, or structure, such as a plant bud, in which an organism remains dormant |
| 离体条芽一种保护性的外壳、表皮或结构，例如植物的芽，在其内部一个有机体处于冬眠状态 |
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