形容词
中文翻译：随机的
同义词：
['arbitrary', 'capricious', 'casual', 'chance']
例句：
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1. The random selection of the winners wasa surprise to everyone.
随机选择获奖者让每个人都感到惊讶。
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2. She decided to goto the beach on a whim,without any plans in mind.
她心血来潮决定去海滩，没有事先计划。
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3.The random act of kindness made her feelgood about herself.
偶然的善举让她对自己感觉良好。