A spasm is a sudden tightening of your muscles, which you cannot control.
例句
A muscular spasm in the coronary artery can cause a heart attack...冠狀動脈的肌肉痙攣可能導致心臟病。A lack of magnesium causes muscles to go into spasm.缺鎂會導致肌肉痙攣。
N-COUNT
(劇痛或不愉快情感的)陣發，迸發
A spasm is a sudden strong pain or unpleasant emotion which lasts for a short period of time.
例句
A spasm of pain brought his thoughts back to the present...一陣劇痛把他的思緒拉回到了現在。Kemp felt a spasm of fear.肯普突然感到一陣恐懼。
英漢詞典釋義
n.
痙攣, 抽搐
When the spasm passed, it left him weak and sweating.一陣痙攣之后，他虛弱無力，一直冒汗。After the patient received acupuncture treatment,his spasms eased off somewhat.病人接受針刺治療后,痙攣稍微減輕了。She could not speak; her throat was in spasm.她喉嚨抽搐著 ，說不出話來。If breathing is not restored,the patient may go into spasm.如果不能恢復呼吸,這個病人就會發生抽搐。If breathing is not restored, the patient may go into spasm.如果不能恢復呼吸, 這個病人就會發生抽搐。
(能量、行為等的)突發, 發作, 陣發
a spasm of coughing一陣咳嗽He felt a spasm of panic sweeping over him.他感到一陣恐慌傳遍全身。He kicked the chair in a spasm of impatience.他突然變得不耐煩，一腳踢向椅子。
英英詞典釋義
Noun
1. a painful and involuntary muscular contraction
2. (pathology) sudden constriction of a hollow organ (as a blood vessel)