Happy and smiling
It is a Chinese idiom, which means to laugh heartily. It comes from a reply to Dong'e Wang Jian.
explain
To laugh heartily.
source
Han Chen Lin's answer to Dong'e Wang Jian: "I listen to the sound of snow white and watch the festival of green water. Then I write Dongye and Ba Ren by Chi Biyi, and I can't help laughing."
Happy and smiling
an ant trying to shake a tree-ridiculously overrating oneself - hàn shù bí fú
mount taishan and the north star - tài shān běi dǒu
like nature itself -- highest quality - hùn rán tiān chéng
support those in distress and aid those in misery - fú wēi jiù kùn
Fight against frost and be proud of snow - dòu shuāng ào xuě