名词
中文翻译：单指
同义词：
['single finger', 'single joint']
例句：
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1.The doctor examined the injured arm and found a single fracture.
医生检查了受伤的手臂，发现只有一处骨折。
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2. The dancer performed a solo piece for the audience.
舞者为观众表演了一个独舞节目。
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3.The musician played a solo on the piano.
音乐家在钢琴上演奏了一首独奏曲。