确切病因
Exact cause of disease
以上为机器翻译结果，长、整句建议使用 人工翻译 。
医生们难以判定她的确切病因。
Doctors found it hard to establish the precise nature of her illness.
《牛津词典》
经前综合症的确切病因尚未完全了解。
The exact causes of PMS are not fully understood.
youdao
目前其确切病因和发病机制不详。
Its exact etiology and pathogenesis remain unknown.
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