症状的英语是symptom。
例句：
1、这种疾病的一个显著症状就是记忆逐渐丧失。
One prominent symptom of the disease is progressive loss of memory.
2、尽管丈夫和家人都吓坏了，维多利亚却对这一症状出奇地淡定。
Victoria was strangely undisturbed by this symptom, even though her husband and family were frightened.
3、十天后，这种病的症状显现出来。
The symptoms of the disease manifested themselves ten days later.
4、这些症状也许是由病毒感染引起的，而与寄生虫无关。
These symptoms may be referable to virus infection rather than parasites.
5、症状将会自行消失。
The symptoms will clear up of their own accord.
飞火+流萤
