地震征兆；前驱症状

presenting symptom───主要症状；主诉

common symptom───常见症状

premonitorily───预感的

premonitors───n.征兆；前兆；预告者

premonitory───adj.先兆的，预兆的

preparatory schools───预科；预备学校

regulatory system───调节系统

Since it is a rare disorder, it is difficult to say what the premonitory symptoms are.───由于这是一种罕见的病症，我们很难说清楚它的初期症状。

Generally speaking, the incubation period or the premonitory symptoms duration is shorter, the symptom is more serious, the mortality rate is higher.───一般来说，潜伏期或前驱症状持续时间越短，症状越严重，死亡率越高。

Of the 497 cases with apoplexy, there were 11 kinds of premonitory symptoms, of which headache, dizziness, numbness of the limbs, inarticulate speech, blurred version, etc. are more common.───了497例中风患者的先兆症状。共出现11种先兆症状，其中以头痛、头晕、肢体麻木，言语不清及视物不清等症状为多。

Clinical study on treatment of premonitory symptoms of apoplexy with Naoningkang granule───脑宁康防治中风病先兆证的临床研究

Clinical Study on Effect of Yufeng Capsule on Premonitory Symptoms of Apoplexy───愈风胶囊治疗中老年中风先兆的临床观察

Report of 35 penicillin anaphylaxis cases with premonitory symptoms of abdominal angina───以腹痛为前驱症状的青霉素过敏反应35例报道

Epidemiological evidence suggests that complications associated with NSAIDs are characterised by a paucity of premonitory symptoms.