词典释义：
(in the body)a whitish fibre or bundle of fibres that transmits impulses of sensation to the brain or spinal cord, and impulses from these to the muscles and organs
神经
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the optic nerve .视觉神经。
(
神经质，神经紧张；情绪不安，提心吊胆
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an amazing journey which tested her nerves to the full .使她的神经接受最大考验的一次令人惊异的旅程。
nervousness or anxiety
紧张；焦虑
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his first-night nerves soon disappeared .他第一天晚上的焦虑很快就消失了。
[mass noun](一般作
精神力量，勇气，魄力；胆量；胆力
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she kept her nerve and won five games in a row 她一鼓作气，连续赢得五场比赛
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the army's commanders were beginning to lose their nerve .军队的指挥官开始胆怯了。
〈非正式〉 厚脸皮；大胆
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he had the nerve to insult my cooking 他还有脸对我的烹饪说三道四
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she's got a nerve wearing that short skirt with those legs. 她那种腿型竟然有胆子穿上了那件短裙。
【植】 （叶）脉。
brace oneself mentally to face a demanding situation
使有劲，使振作，使奋进
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she nerved herself to enter the room 她鼓起勇气走进了房间
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he nerved himself for a final effort .他给自己打气作最后的努力。
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a bag （或bundle ）of nerves informal someone who is extremely timid or tense 〈非正式〉 极端胆小的人；神经极度紧张的人 -
get on someone's nerves informal irritate or annoy someone 〈非正式〉 使某人紧张不安；让某人心烦 -
have nerves of steel not be easily upset or frightened 沉着；有胆量 -
live on one's nerves （或one's nerve ends ） be extremely anxious or tense 过紧张不安的日子 -
strain every nerve make every possible effort 竭尽全力，拼命 -
［ORIGIN from the earlier sense of
nerve as ‘tendon, sinew’. ］touch （或hit ）a nerve （或a raw nerve ） provoke a reaction by referring to a sensitive topic 触及要害；触到痛处 -
war of nerves a struggle in which opponents try to wear each other down by psychological means 神经战
"late Middle English （also in the sense ‘tendon, sinew’）： from Latin
