形容词
中文翻译：坚固的
同义词：
['robust', 'robust']
例句：
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1. The old tree is still standing, despite the age.
尽管年岁已高，这棵老树依然屹立不倒。
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2. The new building is designed to be more energy-efficient and more environmentally friendly.
这座新建筑设计得更加节能和环保。
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3. The young man's resilience in the face of adversity is truly impressive.
这位年轻人在逆境中的坚韧不拔令人钦佩。