It's a neurotransmitter that helps promote feelings of attraction, excitement, and giddiness.
它是一种神经递质,有助于促进吸引、兴奋和头晕的感觉。
Her father, contented with laughing at them, would never exert himself to restrain the wild giddiness of his youngest daughters; and her mother, with manners so far from right herself, was entirely insensible of the evil.
她父亲对这些缺陷只是一笑置之,懒得去约束他那几个小女儿的狂妄率的作风;至于她母亲,她本身既是作风失检,当然完全不会感觉到这方面的危害。