the nervous system
tense; excited; unstable
"a nervous addict"
"a nervous thoroughbred"
"spent an anxious night waiting for the test results"
"cast anxious glances behind her"
"those nervous moments before takeoff"
"an unquiet mind"
The arms strong and nervous, having the veins conspicuous.
出自： Richard Saunders
They..handled their paddles unskilfully, but with nervous energy and determination.
出自： H. D. Thoreau