图书馆门口贴着告示,提醒参观者不得大声喧哗。Túshūguǎn ménkǒu tiē zhe gàoshì, tíxǐng cānguānzhě bù dé dàshēng xuānhuá.A notice is posted at the library entrance reminding visitors not to make loud noise.
课堂上要保持安静,不要喧哗。Kètáng shang yào bǎochí ānjìng, búyào xuānhuá.In class you should keep quiet and not make a racket.
半夜还在喧哗的邻居终于搬走了。Bànyè hái zài xuānhuá de línjū zhōngyú bān zǒu le.The neighbors who were still making noise in the middle of the night have finally moved away.