十分/很 + 热闹
热闹 (rènao) means 'lively,' 'bustling,' or 'festive' and describes a scene full of energy and activity. It can be used as an adjective or a verb meaning 'to have a good time.' For example, 十分热闹 means 'very lively and bustling.'
过年的时候,街上特别热闹。
guònián de shíhou, jiē shàng tèbié rènao.
During the New Year, the streets are especially lively.
孩子们在院子里玩得很热闹。
háizimen zài yuànzi lǐ wán de hěn rènao.
The children are playing happily in the yard.
这家夜市每天晚上都很热闹。
zhè jiā yèshì měitiān wǎnshang dōu hěn rènao.
This night market is very lively every evening.