副词
中文翻译：轻率地
同义词：
['idly', 'carelessly']
例句：
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1.She ate the cake with afrivolously casual attitude.
她以一种漫不经心的态度吃着蛋糕。
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2.He played the piano frivolously, not seriously.
他轻率地弹钢琴，没有认真对待。
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3. Thechildren were frivolously playing with their toysin the park.
孩子们在公园里轻率地玩他们的玩具。