没有明显的胃肠道感染诱因，并且既往无胃肠道疾病史。

There was no obvious cause of gastrointestinal infection and history of gut diseases.

youdao

品德优秀，五官端正，口齿清晰，身体健康，无重大疾病史。

Nice moral character, the five sense organs are on the place, clear speaking, and healthy.

youdao

品德优秀，五官端正，口齿清晰，身体健康，无重大疾病史。

Nice moral character, the five sense organs are on the place, clear speaking, and healthy.

youdao