名词
中文翻译：Unknown
同义词：
['flutter', 'flap', 'sway', 'quiver']
例句：
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1.
鸟等的
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2.
经济、市场等
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3.
感情
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4.
声音
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1. The butterfly's wings fluttered inthe breeze.
蝴蝶的翅膀在风中扑动。
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2. The stock market is experiencing avolatile market trend.
股市正经历一个不稳定的市场趋势。
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3. Her voice quivered slightly as she spoke.
她说话时声音微微颤抖。