名词
中文翻译：Unknown
同义词：
['thread', 'filament', 'strand']
例句：
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1.The fibers in this fabric are so soft and smooth.
这种织物的纤维非常柔软光滑。
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2. The filament is so thin that it can hardly be seen.
这条细丝太细了，几乎看不见。
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3. The filament was used to make the thread for sewing.
这条细丝被用来制作缝纫线的线。