Self - pollination, and subsequently self - fertilisation, in orchards always takes place to some extent.

在种子园中,常常有某种程度的自花传粉和随后地自花授精.

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But the latest fad is promoting in vitro fertilisation ( IVF ).

但是最近的时尚是促进试管受精.

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Singer Celine Dion is reportedly pregnant with twins after her sixth attempt at in - vitro fertilisation.

据报道,席琳迪翁第六次人工受精试验成功,已经怀上了一对双胞胎.

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Dr Davies suggests that it may have happened here becausefish have external fertilisation.

戴维斯博士猜想会出现这种情况的原因是鱼类是体外受精的.

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Embryos developed by in vitro fertilisation Methods : Would be routinely scanned for genetic illnesses.

利用体外受精培养的胚胎将接受对遗传病的例行普查.

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