名詞 convulsion:

1. a sudden uncontrollable attack
   同義詞：paroxysm, fit
2. violent uncontrollable contractions of muscles
3. a violent disturbance
   同義詞：turmoil, upheaval
4. a physical disturbance such as an earthquake or upheaval

1. The President's assassination led to political convulsion.
   總統(tǒng)遇刺引起了政治騷亂。
2. The child reacted to the drug by going into convulsions.
   這孩子全身痙攣，對藥物有反應(yīng)。
3. We are all in convulsion of laughter.
   我們大家都笑得前仰后合。

con.vul.sion

n.（名詞）
An intense, paroxysmal, involuntary muscular contraction.
抽搐：一種強烈的、陣發(fā)性的、不自覺的肌肉收縮
An uncontrolled fit, as of laughter; a paroxysm.
狂笑，發(fā)作：無法控制的發(fā)作，如大笑等；突然發(fā)作
Violent turmoil:
騷亂：強烈的騷動或動亂：
例句：
.The market convulsions of the last few weeks have shaken the world.(Felix Rohatyn)
.前幾周的市場動蕩震動了整個世界.(費利克斯·羅哈廷)