English主要词典
spasm
Universal Words
noun
1 [C,U] a sudden and often painful tightening of a muscle, which you cannot control:
She felt a muscle spasm in her back. * The injection sent his leg into spasm.
2 [C] ~ (of sth) a sudden strong feeling or reaction that lasts for a short time:
a spasm of anxiety / anger / coughing / pain
