郑重其事

zhèngzhòngqíshì

郑重其事 — zhèngzhòngqíshì

1. to treat a matter with solemnity; to take something seriously

   他在会上郑重其事地发表了讲话。 tā zài huìshàng zhèngzhòngqíshì dì fābiǎo le jiǎnghuà — He delivered a speech at the meeting, treating the matter with solemnity.