àn / zhào / guò / qù / de / chéng / lì / zhè / lèi / shēn / qǐng / xū / yào / jīng / guò / sān / gè / yuè / de / shěn / hé

按照过去的成例，这类申请需要经过三个月的审核。

According to established precedent, this type of application requires three months of review.