名词
中文翻译：意外的低鸣声
同义词：
['unexpected murmur', 'accidental sound']
例句：
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1.The old clock's accidental murmur echoed through the empty room.
旧钟的意外低鸣声在空荡荡的房间里回荡。
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2. The animal's accidental murmur was so soft that it barely registered on the human ear.
动物的意外低鸣声如此轻柔，以至于人类几乎听不见。
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3. The faint accidental murmur of a distant river could be heard in the distance.
远处河流微弱的意外低鸣声可以听到。