Otherwise they would not need a love potion.

如果有，他们也就不需要爱情药水来追求爱情了。

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While scientists have yet to concoct a love potion, their research is providing some helpful tips for a successful marriage.

虽然科学家还没有研究出爱的配方，但是他们为人们获取和经营一段成功的婚姻，提供了一些有用的秘诀。

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And how soon before we create a scientifically valid love potion? (Already under study, by the way.)

多久会有科学研制成功的爱情药剂问世（顺便说一下，已经在研制了）？

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One of its dozen songs is a classic rock tune, Love Potion

VOA: standard.2009.11.03

Alcina takes a liking to Ruggiero and quickly seduces him with a love potion.

NPR: Love And Lunacy: Vivaldi's 'Orlando Furioso'

And so Hermione Granger, that charming grind, still goes to the Hogwarts library and spends hours and hours working her way through the stacks, finding out what a basilisk is or how to make a love potion.

NEWYORKER: The Information