形容词
中文翻译：Unknown
同义词：
['transient', 'fleeting', 'ephemeral']
例句：
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1.The flowers are ephemeral and will wither away quickly.
这些花是短暂的，很快就会凋谢。
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2. The sun is an ephemeral source of light in the night sky.
太阳在夜空中是短暂的光源。
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3. The memory of that moment is ephemeral, but it left a lasting impression on me.
那一刻的记忆是短暂的，但它给我留下了持久的印象。