Previously they had transplanted the outer shell of the ovary and found that, even if the tissue is frozen, it can restore fertility.

先前他们做过卵巢外部移植手术，他们发现即使卵巢组织被冷冻，仍然能够连结生育能力。

youdao

As pianos became more available, they brought classical music, the music which previously had been composed only for the upper classes, into the lives of the middle-class people as well.

随着钢琴越来越普及，古典音乐也随之进入了中产阶级的生活，而在此之前，古典音乐只是为上层阶级创作的。

youdao

Since the convictions, many former Scientologists have come forward to tell stories they had previously kept secret for fear of Hubbard's Guardians.

自这次定罪之后，很多前山达基成员主动站出来说出了一些事情，之前他们因为害怕哈伯德的卫士而不得不守口如瓶。

youdao

Thousands of young people, who had previously thought of themselves as part of an isolated minority, experienced the euphoric sense of discovering that they are, as the saying goes, what's happening."

VOA: special.2009.08.10

At the same time, faults with SIRI have been dragged back into the spotlight, where previously they had been allowed to fade.

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Previously they had been congregating in an Anglican church.

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Senior staff previously said they had good records of the work and believed pupils could still be marked.

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