近一个世纪前，生物学家发现，如果他们在无脊椎动物胚胎生命的早期阶段将其分成两部分，它会存活下来并发育成两个正常的胚胎。
Nearly a century ago, biologists found that if they separated an invertebrate animal embryo into two parts at an early stage of its life, it would survive and develop as two normal embryos.
在举行婚礼前，Fatima告诉了她的丈夫她是拉拉。但同她身边的其他大多人一样，她丈夫以为这只是她会度过的一个人生阶段。
She told him before the wedding that she was attracted to women, but like so many others in her life he had assumed it was a phase that she'd get over.
在进入下一个繁荣阶段前，它必须忍受更多的痛苦。
It must endure much more pain before it enters its next phase of prosperity.
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