He did not care a snap to talk loudly in class.

他毫不在乎地在课堂上大声讲话.

《现代汉英综合大词典》

It's impolite to stare at anyone or to talk loudly in public.

盯着别人看或在公共场所大声交谈是不礼貌的.

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Don't talk loudly when you are outdoors.

当你在外面时,不要太大声讲话.

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Barker: someone paid to stand in front of a store and talk loudly to attract customers.

招徕客人的人: 受雇站在商店前吆喝招揽顾客的人.

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