名词
中文翻译：神经
同义词：
['nerve fiber', 'nerve center', 'nervous system']
例句：
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1. The doctor advised him to take care of his nerves.
医生建议他要好好照顾自己的神经。
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2. She was so nervous about the test that she couldn't sleep.
她对考试非常紧张，以至于睡不着觉。
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3. The scientist studied the nervous system in detail.
科学家详细研究了神经系统。