郑重其事 (zhèng zhòng qí shì) — seriously, earnestly, with solemnity

Definition

A formal idiom meaning 'with great seriousness and solemnity,' stronger than plain 认真. Used for important, weighty actions like announcements or promises — not casual tasks.

idiom

seriouslyearnestlywith solemnity

Examples

郑重其事，。
Tā zhèng zhòng qí shì dì duì wǒ shuō, zhè jiàn shì hěn zhòng yào.
He told me seriously that this matter is very important.
郑重其事。
Nǐ yīng gāi zhèng zhòng qí shì dì duì dài zhè cì kǎo shì.
You should treat this exam earnestly.
郑重其事。
Lǎo bǎn zhèng zhòng qí shì dì xuān bù le gōng sī de xīn guī dìng.
The boss solemnly announced the company's new rules.

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