显现出了感冒的征兆 英文怎么说

shows the symptom of catching a cold

early symptoms of catching a cold appear

there are a series of indications of catching a cold

(There is )apparently some symptom of catching a cold.

注意：1. symptom一般只用单数。

early symptoms of cold appear
early signs of cold appear
symptom用作复数是很常见的，比如在这个网页里：http://www.symptom-diagnosis.com/infection-symptoms/cold-symptoms