名词
中文翻译：伸展线状物
同义词：
['stretch', 'extension', 'elongation']
例句：
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1.The scientist stretched the wire to measure its length.
科学家把电线拉长来测量其长度。
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2.The engineer designed an extension to improve the building's stability.
工程师设计了一个扩展部分，以改善建筑物的稳定性。
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3. The plant grows taller with each passing day, demonstrating elongation.
随着每一天的过去，植物长得更高，显示出伸长。