虽然许多人都遵循“相异相吸”这一老话，但情场上其实并没有铁的法则。 罜。

When it comes to love, there are no hard and fast rules though many people follow the age-old theory that opposites attract.

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医生在坏汉堡帽的自来水培养在牛肉心脏和白色蠕虫没有铁并且哺养的那些没有红颜色。

Those that the doctor raised in the tap water in Bad Homburg that has no iron and fed on beef-heart and white worms has no red colour.

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然而，尽管当地铁浓度立即提高，在一个这样的区域实验释放铁化合物却没有产生大量的浮游生物。

However, an experimental release of iron compounds into one such area failed to produce a thriving plankton population, even though local iron concentrations increased immediately.

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When I was commuting between Limoges and Paris, that was still a long trip then, there was no TGV; it was about four hours.

如果我在里摩日和巴黎之间通勤,这依旧是段漫长的旅途,这儿没有法国高铁,大概要用四小时

耶鲁公开课 - 1871年后的法国课程节选

There's nothing in biology per se that rules out cell division.

生物学中没有排除细胞分裂的铁规则。

耶鲁公开课 - 死亡课程节选