nerve/ nəːv /

1.noun [c] [解剖] 
神经

2.noun [u] 
(courage) 勇气

3.n pl
nerves (anxiety) 神经紧张

4.n pl
(strength of character) 精神力量

to lose one's nerve
失去勇气
to have the nerve to do sth
有胆量做某事
5.n pl
(cheek) 厚颜无耻地做某事

you've got a nerve!
 [inf] 你真有脸!
what a nerve!
真有胆量!
to get on sb's nerves
使某人心烦