名词
中文翻译：能力
同义词：
['lack of ability', 'incapacity']
例句：
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1.She has an inability to speak English fluently.
她英语说得不好。
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2. The doctor said he had an inability to walk without assistance.
医生说他走路需要帮助才能走。
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3. He was unable to finish the task on time.
他没能按时完成这项任务。