她把这个问题分析得头头是道,大家都听得很认真。Tā bǎ zhège wèntí fēnxī de tóutóu shìdào, dàjiā dōu tīng de hěn rènzhēn.She analyzed the problem very coherently, and everyone listened attentively.
他讲起自己的爱好,头头是道,像个小专家。Tā jiǎng qǐ zìjǐ de àihào, tóutóu shìdào, xiàng ge xiǎo zhuānjiā.When he talks about his hobby, he is clear and convincing, like a little expert.
这份计划书写得头头是道,经理看了非常满意。Zhè fèn jìhuàshū xiě de tóutóu shìdào, jīnglǐ kàn le fēicháng mǎnyì.This plan is written clearly and logically, and the manager was very satisfied with it.