1. 痉挛的 痉挛的：spasm 痉挛 | spasmodic 痉挛的 痉挛的 | spasmolysis 解痉作用

2. 痉挛的：spasm 痉挛 | spasmodic 痉挛的 | spasmodical 痉挛的

3. 抽筋/发作的：spasm /痉挛/痉/ | spasmodic /抽筋/发作的/ | spasmodical /抽筋/发作的/

4. 痉挛的,间歇性的：somnolent 思睡的,催眠的 | spasmodic 痉挛的;间歇性的 | squeamish 易恶心的,易受惊的

1. 间歇的;一阵阵的
Something that is spasmodic happens suddenly, for short periods of time, and at irregular intervals.

e.g. He managed to stifle the spasmodic sobs of panic rising in his throat...
他惊慌得差一点哭了起来，不过还是竭力地克制住了。
e.g. My husband's work was so spasmodic.
我丈夫的工作总是时忙时闲。

adj

1. occurring in spells and often abruptly

e.g. fitful bursts of energy
spasmodic rifle fire

Synonym: fitful

2. affected by involuntary jerky muscular contractions
resembling a spasm

e.g. convulsive motions
his body made a spasmodic jerk
spastic movements

Synonym: convulsivespastic