Mostly the early symptom included pain along neck and shoulder, numbness and weakness.

大多数肿瘤的早期症状是颈肩部疼痛、肢体麻木、无力。

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These can be an early symptom of liver disease - you'll probably feel sick and lethargic, too.

红手掌有可能是肝脏疾病的早期症状，你可能会有不舒服和昏睡的感觉。

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The symptoms of these diseases are very similar, so it is very hard to distinguish by analyzing early symptom.

这些病害的初期症状很相似，难以通过早期症状分析判断出病害类型，给病害诊断和防治造成很大困难。

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An early symptom of B12 deficiency is anaemia, but taking large amounts of folic acid treats the anaemia without treating the B12 deficiency.

BBC: Vitamin B 'puts off Alzheimer's'

But Dr Robert Green, who led the study, suggested depression could adversely affect the brain or could be a very early symptom of the disease.

BBC: Clue to old age memory loss

Failure to develop this trick is an early symptom of autism, a syndrome whose main underlying feature is an inability to understand that other people have minds, too.

ECONOMIST: Now, it seems, even the bird-brained have theories of mind