名词
中文翻译：上层墙壁
同义词：
['upper slab', 'upper face', 'upper surface']
例句：
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1. The upper wall of the building ismade of brick.
这座建筑的上层是用砖砌成的。
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2. The upper wall of the houseis covered in ivy.
这所房子的上层被常春藤覆盖着。
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3. Theupper wall was damaged during the storm.
风暴期间，上层墙体受损了。