名词
中文翻译：铁锈石
同义词：
['ruststone', 'rusty stone']
例句：
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1.The old house was covered in a thick layer of iron rust.
这所旧房子上覆盖着厚厚的一层铁锈。
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2. The rusty metal door creaked as it opened.
生锈的金属门吱吱作响地打开了。
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3.The rusty old car was still functional despite its years of neglect.
尽管年久失修，那辆生锈的老车仍然可以使用。