在皈依犹太教之前，他必须在净身池中进行仪式性的沐浴。

Before converting to Judaism, he had to immerse himself in the ___mikveh for the ritual.

仪式前，她必须浸入符合宗教标准的净身池中。

Before the ceremony, she must immerse herself in the ___mikveh that meets religious standards.